<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.meadjohnson.com/role/AccountingPolicies" xlink:href="mjn-20160331.xsd#AccountingPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/AccountingPoliciesPolicies" xlink:href="mjn-20160331.xsd#AccountingPoliciesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CommitmentsAndContingencies" xlink:href="mjn-20160331.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CommitmentsAndContingenciesDetails" xlink:href="mjn-20160331.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedBalanceSheetsUnaudited" xlink:href="mjn-20160331.xsd#CondensedConsolidatedBalanceSheetsUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:href="mjn-20160331.xsd#CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="mjn-20160331.xsd#CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:href="mjn-20160331.xsd#CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEarningsUnaudited" xlink:href="mjn-20160331.xsd#CondensedConsolidatedStatementsOfEarningsUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEquityUnaudited" xlink:href="mjn-20160331.xsd#CondensedConsolidatedStatementsOfEquityUnaudited" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEquityUnauditedCondensedConsolidatedStatementsOfEquityUnauditedparenthetical" xlink:href="mjn-20160331.xsd#CondensedConsolidatedStatementsOfEquityUnauditedCondensedConsolidatedStatementsOfEquityUnauditedparenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Debt" xlink:href="mjn-20160331.xsd#Debt" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DebtDebtComponentsOfInterestExpenseDetails" xlink:href="mjn-20160331.xsd#DebtDebtComponentsOfInterestExpenseDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DebtNarrativeDetails" xlink:href="mjn-20160331.xsd#DebtNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DebtScheduleOfLongTermDebtInstrumentsDetails" xlink:href="mjn-20160331.xsd#DebtScheduleOfLongTermDebtInstrumentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DebtTables" xlink:href="mjn-20160331.xsd#DebtTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Derivatives" xlink:href="mjn-20160331.xsd#Derivatives" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DerivativesDerivativesScheduleOfDerivativeLiabilitiesAtFairValueDetails" xlink:href="mjn-20160331.xsd#DerivativesDerivativesScheduleOfDerivativeLiabilitiesAtFairValueDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DerivativesNarrativeDetails" xlink:href="mjn-20160331.xsd#DerivativesNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DerivativesScheduleOfChangeInOtherComprehensiveIncomeLossDetails" xlink:href="mjn-20160331.xsd#DerivativesScheduleOfChangeInOtherComprehensiveIncomeLossDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DerivativesScheduleOfFairValueOfOutstandingDerivativesDetails" xlink:href="mjn-20160331.xsd#DerivativesScheduleOfFairValueOfOutstandingDerivativesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DerivativesTables" xlink:href="mjn-20160331.xsd#DerivativesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/DocumentAndEntityInformation" xlink:href="mjn-20160331.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EarningsPerShare" xlink:href="mjn-20160331.xsd#EarningsPerShare" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EarningsPerShareDetails" xlink:href="mjn-20160331.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EarningsPerShareTables" xlink:href="mjn-20160331.xsd#EarningsPerShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EmployeeStockBenefitPlans" xlink:href="mjn-20160331.xsd#EmployeeStockBenefitPlans" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansDetails" xlink:href="mjn-20160331.xsd#EmployeeStockBenefitPlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansDetails2" xlink:href="mjn-20160331.xsd#EmployeeStockBenefitPlansDetails2" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansTables" xlink:href="mjn-20160331.xsd#EmployeeStockBenefitPlansTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Equity" xlink:href="mjn-20160331.xsd#Equity" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EquityAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:href="mjn-20160331.xsd#EquityAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EquityEquityScheduleOfStockByClassDetails" xlink:href="mjn-20160331.xsd#EquityEquityScheduleOfStockByClassDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EquityNarrativeDetails" xlink:href="mjn-20160331.xsd#EquityNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EquityReclassificationAdjustmentsOutOfAccumulatedOtherComprehensiveLossDetails" xlink:href="mjn-20160331.xsd#EquityReclassificationAdjustmentsOutOfAccumulatedOtherComprehensiveLossDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/EquityTables" xlink:href="mjn-20160331.xsd#EquityTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Goodwill" xlink:href="mjn-20160331.xsd#Goodwill" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/GoodwillDetails" xlink:href="mjn-20160331.xsd#GoodwillDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/GoodwillTables" xlink:href="mjn-20160331.xsd#GoodwillTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/IncomeTaxes" xlink:href="mjn-20160331.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/IncomeTaxesDetails" xlink:href="mjn-20160331.xsd#IncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Inventories" xlink:href="mjn-20160331.xsd#Inventories" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/InventoriesDetails" xlink:href="mjn-20160331.xsd#InventoriesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/InventoriesTables" xlink:href="mjn-20160331.xsd#InventoriesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/LongLivedAssets" xlink:href="mjn-20160331.xsd#LongLivedAssets" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/LongLivedAssetsLongLivedAssetsNarrativeDetails" xlink:href="mjn-20160331.xsd#LongLivedAssetsLongLivedAssetsNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/LongLivedAssetsLongLivedAssetsOtherIntangibleAssetsDetails" xlink:href="mjn-20160331.xsd#LongLivedAssetsLongLivedAssetsOtherIntangibleAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/LongLivedAssetsPropertyPlantAndEquipmentDetails" xlink:href="mjn-20160331.xsd#LongLivedAssetsPropertyPlantAndEquipmentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/LongLivedAssetsTables" xlink:href="mjn-20160331.xsd#LongLivedAssetsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/NetEarningsAttributableToNoncontrollingInterests" xlink:href="mjn-20160331.xsd#NetEarningsAttributableToNoncontrollingInterests" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/NetEarningsAttributableToNoncontrollingInterestsDetails" xlink:href="mjn-20160331.xsd#NetEarningsAttributableToNoncontrollingInterestsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/Organization" xlink:href="mjn-20160331.xsd#Organization" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/OrganizationDetails" xlink:href="mjn-20160331.xsd#OrganizationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/OtherIncomeExpensesNet" xlink:href="mjn-20160331.xsd#OtherIncomeExpensesNet" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/OtherIncomeExpensesNetDetails" xlink:href="mjn-20160331.xsd#OtherIncomeExpensesNetDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/OtherIncomeExpensesNetTables" xlink:href="mjn-20160331.xsd#OtherIncomeExpensesNetTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlans" xlink:href="mjn-20160331.xsd#PensionAndOtherPostEmploymentBenefitPlans" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlansDetails" xlink:href="mjn-20160331.xsd#PensionAndOtherPostEmploymentBenefitPlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlansTables" xlink:href="mjn-20160331.xsd#PensionAndOtherPostEmploymentBenefitPlansTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/RestructuringRestructuring" xlink:href="mjn-20160331.xsd#RestructuringRestructuring" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/RestructuringRestructuringNarrativeDetails" xlink:href="mjn-20160331.xsd#RestructuringRestructuringNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/RestructuringRestructuringRestructuringChargesAndRelatedReserveAssociatedWithFuelForGrowthDetails" xlink:href="mjn-20160331.xsd#RestructuringRestructuringRestructuringChargesAndRelatedReserveAssociatedWithFuelForGrowthDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/RestructuringRestructuringTables" xlink:href="mjn-20160331.xsd#RestructuringRestructuringTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/SegmentInformation" xlink:href="mjn-20160331.xsd#SegmentInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/SegmentInformationDetails" xlink:href="mjn-20160331.xsd#SegmentInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/SegmentInformationTables" xlink:href="mjn-20160331.xsd#SegmentInformationTables" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/VenezuelaMatters" xlink:href="mjn-20160331.xsd#VenezuelaMatters" xlink:type="simple" />
  <roleRef roleURI="http://www.meadjohnson.com/role/VenezuelaMattersVenezuelaMattersNarrativeDetails" xlink:href="mjn-20160331.xsd#VenezuelaMattersVenezuelaMattersNarrativeDetails" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/AccountingPolicies" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/AccountingPoliciesPolicies" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedBalanceSheetsUnaudited" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEarningsUnaudited" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEquityUnaudited" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_72B1B3C42CAA33C74F4E534EF096E6AD" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_1F5F86E31B4539C4F828534EF095CB46" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_72B1B3C42CAA33C74F4E534EF096E6AD" xlink:to="loc_us-gaap_StatementTable_1F5F86E31B4539C4F828534EF095CB46" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_ABD540DA406C67757BA5534EF095D328" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1F5F86E31B4539C4F828534EF095CB46" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_ABD540DA406C67757BA5534EF095D328" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ABD540DA406C67757BA5534EF095D328" xlink:to="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ABD540DA406C67757BA5534EF095D328" xlink:to="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_EEB0AE1866D203CAE4DC534EF0958CB3" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_CommonStockMember_EEB0AE1866D203CAE4DC534EF0958CB3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_4C3E1EC7AB416AA9C4B5534EF095CC18" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_4C3E1EC7AB416AA9C4B5534EF095CC18" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_35BDD976ED0B0079B8E9534EF0952C23" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_RetainedEarningsMember_35BDD976ED0B0079B8E9534EF0952C23" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_3C73269D68A43F7CB935534EF095720F" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_TreasuryStockMember_3C73269D68A43F7CB935534EF095720F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_5B8EDC0F22EF4FA4F32F534EF095BB56" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_5B8EDC0F22EF4FA4F32F534EF095BB56" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember_8FAFB123655777041DA3534EF0957560" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_NoncontrollingInterestMember_8FAFB123655777041DA3534EF0957560" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ParentMember" xlink:label="loc_us-gaap_ParentMember_762512CB2153532782A8534EF095327C" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_4E294009373239AAC502534EF0955988" xlink:to="loc_us-gaap_ParentMember_762512CB2153532782A8534EF095327C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_72B1B3C42CAA33C74F4E534EF096E6AD" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_B8D8F339B8B11CDA21B7534EF0962887" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_B8D8F339B8B11CDA21B7534EF0962887" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:label="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_FA97CF40BF6CF62D28DA534EF096C077" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_FA97CF40BF6CF62D28DA534EF096C077" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="loc_us-gaap_DividendsCommonStock_1110C5D5423946CB2134534EF096F051" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_DividendsCommonStock_1110C5D5423946CB2134534EF096F051" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_B109B8A2D9607565BD7D534EF09660EF" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_NetIncomeLoss_B109B8A2D9607565BD7D534EF09660EF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_BA7134F0AAA3AD0AF8E8534EF096626A" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_BA7134F0AAA3AD0AF8E8534EF096626A" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_NetIncomeLossExcludingNetEarningsLossAssociatedWithRedeemableNoncontrollingInterests" xlink:label="loc_mjn_NetIncomeLossExcludingNetEarningsLossAssociatedWithRedeemableNoncontrollingInterests_7CE2B9A37CDCAA800F94534EF0965F8E" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_mjn_NetIncomeLossExcludingNetEarningsLossAssociatedWithRedeemableNoncontrollingInterests_7CE2B9A37CDCAA800F94534EF0965F8E" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_EquityImpactOfRedeemableNoncontrollingInterestAccretion" xlink:label="loc_mjn_EquityImpactOfRedeemableNoncontrollingInterestAccretion_F664B30999C90D48F734534EF0964C89" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_mjn_EquityImpactOfRedeemableNoncontrollingInterestAccretion_F664B30999C90D48F734534EF0964C89" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_A692E9552B49F6229EED534EF09662B7" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B293162FFF8BC906E732534EF0960091" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_A692E9552B49F6229EED534EF09662B7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_72B1B3C42CAA33C74F4E534EF096E6AD" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_AEF24FF96E73EA7ABB2A534EF096727F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_AEF24FF96E73EA7ABB2A534EF096727F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TemporaryEquityNetIncome" xlink:label="loc_us-gaap_TemporaryEquityNetIncome_27DBA01D13B508E33C0E534EF096F88C" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:to="loc_us-gaap_TemporaryEquityNetIncome_27DBA01D13B508E33C0E534EF096F88C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValue" xlink:label="loc_us-gaap_TemporaryEquityAccretionToRedemptionValue_CFDBC0CF355327B23983534EF0961A5C" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:to="loc_us-gaap_TemporaryEquityAccretionToRedemptionValue_CFDBC0CF355327B23983534EF0961A5C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TemporaryEquityOtherChanges" xlink:label="loc_us-gaap_TemporaryEquityOtherChanges_9BADD52923BD8ED277B4534EF096DED2" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_DACB2EE5328BE7F91D54534EF0962C92" xlink:to="loc_us-gaap_TemporaryEquityOtherChanges_9BADD52923BD8ED277B4534EF096DED2" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/CondensedConsolidatedStatementsOfEquityUnauditedCondensedConsolidatedStatementsOfEquityUnauditedparenthetical" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Debt" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DebtDebtComponentsOfInterestExpenseDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DebtNarrativeDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DebtScheduleOfLongTermDebtInstrumentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_62BAFED2A5FE7CE3788552E550C108A0" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DebtInstrumentTable_62BAFED2A5FE7CE3788552E550C108A0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_12A528C9F8B0961E664B52E550C2F509" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_62BAFED2A5FE7CE3788552E550C108A0" xlink:to="loc_us-gaap_DebtInstrumentAxis_12A528C9F8B0961E664B52E550C2F509" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_12A528C9F8B0961E664B52E550C2F509" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_12A528C9F8B0961E664B52E550C2F509" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes490PercentDue2019Member" xlink:label="loc_mjn_Notes490PercentDue2019Member_B342A92F091BE812491952E550C208B9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:to="loc_mjn_Notes490PercentDue2019Member_B342A92F091BE812491952E550C208B9" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes3.0PercentDue2020Member" xlink:label="loc_mjn_Notes3.0PercentDue2020Member_543B7BFCBEA99B2B971052E550C22F66" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:to="loc_mjn_Notes3.0PercentDue2020Member_543B7BFCBEA99B2B971052E550C22F66" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_A4.125Notesdue2025Member" xlink:label="loc_mjn_A4.125Notesdue2025Member_9868001F0CAE0A50CE7052E550C3809C" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:to="loc_mjn_A4.125Notesdue2025Member_9868001F0CAE0A50CE7052E550C3809C" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes590PercentDue2039Member" xlink:label="loc_mjn_Notes590PercentDue2039Member_C38885DA172E9C17C99252E550C31974" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:to="loc_mjn_Notes590PercentDue2039Member_C38885DA172E9C17C99252E550C31974" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_A4.600Notesdue2044Member" xlink:label="loc_mjn_A4.600Notesdue2044Member_670A333EC06CDBEC1EB852E550C36C34" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_E9374290C33767952E4E52E550C2857D" xlink:to="loc_mjn_A4.600Notesdue2044Member_670A333EC06CDBEC1EB852E550C36C34" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_06AF75AAB16E9B2C335752E550C34366" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_62BAFED2A5FE7CE3788552E550C108A0" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_06AF75AAB16E9B2C335752E550C34366" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_7D0C59D662FE292A1BD252E550C32A10_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_06AF75AAB16E9B2C335752E550C34366" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_7D0C59D662FE292A1BD252E550C32A10_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_7D0C59D662FE292A1BD252E550C32A10" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_06AF75AAB16E9B2C335752E550C34366" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_7D0C59D662FE292A1BD252E550C32A10" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SeniorNotesMember" xlink:label="loc_us-gaap_SeniorNotesMember_F608E8E33461E8C9055552E550C334E8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_7D0C59D662FE292A1BD252E550C32A10" xlink:to="loc_us-gaap_SeniorNotesMember_F608E8E33461E8C9055552E550C334E8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_B8C67EA69A4BDC006AB752E550C4F1F2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_B8C67EA69A4BDC006AB752E550C4F1F2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge" xlink:label="loc_us-gaap_DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge_E3F1A0F1911F529E0CAE52E550C4721D" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge_E3F1A0F1911F529E0CAE52E550C4721D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_95FCEF9C80FFDF818A9052E550C47088" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_95FCEF9C80FFDF818A9052E550C47088" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_3D3AE07322C5807814C452E550C4B6DB" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_3D3AE07322C5807814C452E550C4B6DB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue" xlink:label="loc_us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue_BA27EB7BD751522E399B52E550C4B0C1" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue_BA27EB7BD751522E399B52E550C4B0C1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_AE750CB922316DF4E52952E550C6BBFB" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_LongTermDebt_AE750CB922316DF4E52952E550C6BBFB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_C029B1C8D5C56AB9E37E52E550C60C1C" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_98385F64A27ADCAF4BE552E550C45638" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_C029B1C8D5C56AB9E37E52E550C60C1C" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DebtTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Derivatives" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DerivativesDerivativesScheduleOfDerivativeLiabilitiesAtFairValueDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_51C709C6D4AA53E5DB51CD7B8523184D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_us-gaap_DerivativeTable_51C709C6D4AA53E5DB51CD7B8523184D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_C1D31DC654CE026023D4CD7B8523770E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_51C709C6D4AA53E5DB51CD7B8523184D" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_C1D31DC654CE026023D4CD7B8523770E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_C1D31DC654CE026023D4CD7B8523770E" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_C1D31DC654CE026023D4CD7B8523770E" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswaps2019noteMember" xlink:label="loc_mjn_Interestrateswaps2019noteMember_6357FE0D6299F211526FCD7B8524D1B8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6" xlink:to="loc_mjn_Interestrateswaps2019noteMember_6357FE0D6299F211526FCD7B8524D1B8" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswaps2020noteMember" xlink:label="loc_mjn_Interestrateswaps2020noteMember_4F7B6E3BA25ECAB1934ACD7B8524E9A0" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_3235065849973AE821A8CD7B85246EB6" xlink:to="loc_mjn_Interestrateswaps2020noteMember_4F7B6E3BA25ECAB1934ACD7B8524E9A0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_5143BB5F502569E812A3CD7B85243AB1" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_51C709C6D4AA53E5DB51CD7B8523184D" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_5143BB5F502569E812A3CD7B85243AB1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_50FE7CD72818D99E9812CD7B852493CA_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_5143BB5F502569E812A3CD7B85243AB1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_50FE7CD72818D99E9812CD7B852493CA_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_50FE7CD72818D99E9812CD7B852493CA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_5143BB5F502569E812A3CD7B85243AB1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_50FE7CD72818D99E9812CD7B852493CA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_us-gaap_FairValueHedgingMember_9CA082E5A27AC96F8E0BCD7B852458DF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_50FE7CD72818D99E9812CD7B852493CA" xlink:to="loc_us-gaap_FairValueHedgingMember_9CA082E5A27AC96F8E0BCD7B852458DF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_329D185F8AB099657140CD7B8524CE75" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_51C709C6D4AA53E5DB51CD7B8523184D" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_329D185F8AB099657140CD7B8524CE75" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_329D185F8AB099657140CD7B8524CE75" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_329D185F8AB099657140CD7B8524CE75" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes490PercentDue2019Member" xlink:label="loc_mjn_Notes490PercentDue2019Member_2BD43882545530981E42CD7B85244A90" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA" xlink:to="loc_mjn_Notes490PercentDue2019Member_2BD43882545530981E42CD7B85244A90" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes3.0PercentDue2020Member" xlink:label="loc_mjn_Notes3.0PercentDue2020Member_98B708767F518FBA7740CD7B85244DB4" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_67A4E6F30BAA6F71E107CD7B8524CECA" xlink:to="loc_mjn_Notes3.0PercentDue2020Member_98B708767F518FBA7740CD7B85244DB4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount_C8FAFF776A7A225F321ECD7B8524949F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_invest_DerivativeNotionalAmount_C8FAFF776A7A225F321ECD7B8524949F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFixedInterestRate" xlink:label="loc_us-gaap_DerivativeFixedInterestRate_6192D633EDB05BAD8182CD7B85249B15" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_us-gaap_DerivativeFixedInterestRate_6192D633EDB05BAD8182CD7B85249B15" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeVariableInterestRate" xlink:label="loc_us-gaap_DerivativeVariableInterestRate_6E53BEEF946A34BBABD6CD7B8524213F" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_us-gaap_DerivativeVariableInterestRate_6E53BEEF946A34BBABD6CD7B8524213F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_B50399D65C0B1C9DEE69CD7B85245771" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_B50399D65C0B1C9DEE69CD7B85245771" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_F25DD97C8033DF8747E9CD7B85252558" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3C430954D5874C567EE9CD7B85248DB1" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_F25DD97C8033DF8747E9CD7B85252558" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DerivativesNarrativeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativesFairValueLineItems" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_99948E8D0CEB6BC47D12531E99C12AF6" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_99948E8D0CEB6BC47D12531E99C12AF6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_99948E8D0CEB6BC47D12531E99C12AF6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_99948E8D0CEB6BC47D12531E99C12AF6" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes490PercentDue2019Member" xlink:label="loc_mjn_Notes490PercentDue2019Member_9C98881478FAC5D8FC0C531E99C7C010" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70" xlink:to="loc_mjn_Notes490PercentDue2019Member_9C98881478FAC5D8FC0C531E99C7C010" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SeniorNotesMember" xlink:label="loc_us-gaap_SeniorNotesMember_FC69D737D37F9EEBE4E5531E99C71B00" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_BDA55E7B7025ABC173E3531E99C2AA70" xlink:to="loc_us-gaap_SeniorNotesMember_FC69D737D37F9EEBE4E5531E99C71B00" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationAxis" xlink:label="loc_us-gaap_HedgingDesignationAxis_778BB2099333EF28CAC6531E99C730F8" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:to="loc_us-gaap_HedgingDesignationAxis_778BB2099333EF28CAC6531E99C730F8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_A7B9FC1CEB26364E036F531E99C7563F_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_778BB2099333EF28CAC6531E99C730F8" xlink:to="loc_us-gaap_HedgingDesignationDomain_A7B9FC1CEB26364E036F531E99C7563F_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_A7B9FC1CEB26364E036F531E99C7563F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_778BB2099333EF28CAC6531E99C730F8" xlink:to="loc_us-gaap_HedgingDesignationDomain_A7B9FC1CEB26364E036F531E99C7563F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_D033C82312C722D759CA531E99C71F9B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_A7B9FC1CEB26364E036F531E99C7563F" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_D033C82312C722D759CA531E99C71F9B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_9E96C1DC90C820D6BCEA531E99C74932" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_9E96C1DC90C820D6BCEA531E99C74932" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_9E96C1DC90C820D6BCEA531E99C74932" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_9E96C1DC90C820D6BCEA531E99C74932" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignExchangeContractMember" xlink:label="loc_us-gaap_ForeignExchangeContractMember_46874E03189D2127EBC8531E99C7BFB5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_us-gaap_ForeignExchangeContractMember_46874E03189D2127EBC8531E99C7BFB5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_D351CAA1D2F35750638D531E99C7DA11" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_us-gaap_InterestRateSwapMember_D351CAA1D2F35750638D531E99C7DA11" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_us-gaap_FairValueHedgingMember_F8FF3F6D68032F9A3CAB531E99C85FB1" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_us-gaap_FairValueHedgingMember_F8FF3F6D68032F9A3CAB531E99C85FB1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommodityOptionMember" xlink:label="loc_us-gaap_CommodityOptionMember_1554BC056A8D66E33042531E99C8DD4E" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_us-gaap_CommodityOptionMember_1554BC056A8D66E33042531E99C8DD4E" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_TerminatedContractMember" xlink:label="loc_mjn_TerminatedContractMember_1732A9A1FBCA9511160F531E99C8FF82" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_TerminatedContractMember_1732A9A1FBCA9511160F531E99C8FF82" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswaps2019noteMember" xlink:label="loc_mjn_Interestrateswaps2019noteMember_22A61709EB42B82D05C0531E99C849A2" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_Interestrateswaps2019noteMember_22A61709EB42B82D05C0531E99C849A2" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswap2019settledswapsMember" xlink:label="loc_mjn_Interestrateswap2019settledswapsMember_0148E6DA6A31A574BDAB531E99C819FB" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_Interestrateswap2019settledswapsMember_0148E6DA6A31A574BDAB531E99C819FB" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswap2019openswapsMember" xlink:label="loc_mjn_Interestrateswap2019openswapsMember_C2401E6F80D3D57F20D5531E99C826AB" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_Interestrateswap2019openswapsMember_C2401E6F80D3D57F20D5531E99C826AB" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswaps2020noteMember" xlink:label="loc_mjn_Interestrateswaps2020noteMember_5A73D102A384B1BF1128531E99C83033" xlink:type="locator" />
    <definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_Interestrateswaps2020noteMember_5A73D102A384B1BF1128531E99C83033" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Interestrateswap2020openswapsMember" xlink:label="loc_mjn_Interestrateswap2020openswapsMember_E48E8811214E7651FDAA531E99C832CF" xlink:type="locator" />
    <definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C742F9180ED2CC2A31B8531E99C7E21B" xlink:to="loc_mjn_Interestrateswap2020openswapsMember_E48E8811214E7651FDAA531E99C832CF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_A54811D5F61CBD5876D2531E99C8DBD4" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_A54811D5F61CBD5876D2531E99C8DBD4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_A54811D5F61CBD5876D2531E99C8DBD4" xlink:to="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_A54811D5F61CBD5876D2531E99C8DBD4" xlink:to="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_us-gaap_CashFlowHedgingMember_ACB6C5C6389D0A3733AC531E99CD7D52" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44" xlink:to="loc_us-gaap_CashFlowHedgingMember_ACB6C5C6389D0A3733AC531E99CD7D52" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_us-gaap_FairValueHedgingMember_76163B6B406F4EA2436D531E99CD831F" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_8D86E53846E68456AB3E531E99CD8D44" xlink:to="loc_us-gaap_FairValueHedgingMember_76163B6B406F4EA2436D531E99CD831F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_D27D59D7A2DA8812E9E4531E99CD37EE" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_7336705FF60479AB8D27531E99C1A201" xlink:to="loc_us-gaap_DebtInstrumentAxis_D27D59D7A2DA8812E9E4531E99CD37EE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_D27D59D7A2DA8812E9E4531E99CD37EE" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_D27D59D7A2DA8812E9E4531E99CD37EE" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes3.0PercentDue2020Member" xlink:label="loc_mjn_Notes3.0PercentDue2020Member_3F869F9AA6E2FB7634DB531E99CEE810" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311" xlink:to="loc_mjn_Notes3.0PercentDue2020Member_3F869F9AA6E2FB7634DB531E99CEE810" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notes490PercentDue2019Member" xlink:label="loc_mjn_Notes490PercentDue2019Member_8418AF5AC7536BF03A15531E99CE81A7" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_645178D03D15FC1C6E50531E99CD1311" xlink:to="loc_mjn_Notes490PercentDue2019Member_8418AF5AC7536BF03A15531E99CE81A7" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_MaximumPeriodforDiscontinuationofForeignCurrencyCashFlowHedgeDuetoForecastedTransactionIsProbableofNotOccurring" xlink:label="loc_mjn_MaximumPeriodforDiscontinuationofForeignCurrencyCashFlowHedgeDuetoForecastedTransactionIsProbableofNotOccurring_C412F43F2E12EF6C4FF9531E99CE3EC9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_mjn_MaximumPeriodforDiscontinuationofForeignCurrencyCashFlowHedgeDuetoForecastedTransactionIsProbableofNotOccurring_C412F43F2E12EF6C4FF9531E99CE3EC9" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Notransfersbetweenlevelsinfairvaluehierarchy" xlink:label="loc_mjn_Notransfersbetweenlevelsinfairvaluehierarchy_C55B3E20DFAEC843D27C531E99CE23E6" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_mjn_Notransfersbetweenlevelsinfairvaluehierarchy_C55B3E20DFAEC843D27C531E99CE23E6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings" xlink:label="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_489D9970362005461AAB531E99CE1C79" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_GainLossOnFairValueHedgesRecognizedInEarnings_489D9970362005461AAB531E99CE1C79" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount_B3D3C654F4621328ED81531E99CEA12C" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_invest_DerivativeNotionalAmount_B3D3C654F4621328ED81531E99CEA12C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_01DA4465C272C1FB0B7F531E99CE2878" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_01DA4465C272C1FB0B7F531E99CE2878" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_22704C2B0BE8EC8BE17A531E99CE8834" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_22704C2B0BE8EC8BE17A531E99CE8834" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax_3F624CCC9B07D2EDF739531E99CE5BB4" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax_3F624CCC9B07D2EDF739531E99CE5BB4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_D02AC9AE115227758D6B531E99CE550F" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_D02AC9AE115227758D6B531E99CE550F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DescriptionOfReclassificationOfCashFlowHedgeGainLoss" xlink:label="loc_us-gaap_DescriptionOfReclassificationOfCashFlowHedgeGainLoss_965F71CC7CB695E358B7531E99CE149B" xlink:type="locator" />
    <definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_DescriptionOfReclassificationOfCashFlowHedgeGainLoss_965F71CC7CB695E358B7531E99CE149B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_3A5E5BABE5B871F4519D531E99CED885" xlink:type="locator" />
    <definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_3A5E5BABE5B871F4519D531E99CED885" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AmortizationOfDeferredHedgeGains" xlink:label="loc_us-gaap_AmortizationOfDeferredHedgeGains_4C85DE6819257E260A4E531E99CEE121" xlink:type="locator" />
    <definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_AmortizationOfDeferredHedgeGains_4C85DE6819257E260A4E531E99CEE121" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MaximumLengthOfTimeForeignCurrencyCashFlowHedge" xlink:label="loc_us-gaap_MaximumLengthOfTimeForeignCurrencyCashFlowHedge_D44FE7C1D0AFD82E7211531E99CEA7CA" xlink:type="locator" />
    <definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_MaximumLengthOfTimeForeignCurrencyCashFlowHedge_D44FE7C1D0AFD82E7211531E99CEA7CA" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ProceedsFromTerminationOfHedge" xlink:label="loc_mjn_ProceedsFromTerminationOfHedge_010B6C29C602DAF232F5531E99CF5843" xlink:type="locator" />
    <definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_mjn_ProceedsFromTerminationOfHedge_010B6C29C602DAF232F5531E99CF5843" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MoneyMarketFundsAtCarryingValue" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_BAEA015C46A491627C79531E99CF8F40" xlink:type="locator" />
    <definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_A91234AD3E999C317F08531E99CEAE8E" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_BAEA015C46A491627C79531E99CF8F40" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DerivativesScheduleOfChangeInOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_3CAB0E6D29B7CDA93D5C52E9CD102F53" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:to="loc_us-gaap_DerivativeTable_3CAB0E6D29B7CDA93D5C52E9CD102F53" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_6F54C7C57B1F264D2A2452E9CD108607" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_3CAB0E6D29B7CDA93D5C52E9CD102F53" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_6F54C7C57B1F264D2A2452E9CD108607" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_6F54C7C57B1F264D2A2452E9CD108607" xlink:to="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_6F54C7C57B1F264D2A2452E9CD108607" xlink:to="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_us-gaap_CashFlowHedgingMember_803B7690CFC0E865785952E9CD152A8B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D" xlink:to="loc_us-gaap_CashFlowHedgingMember_803B7690CFC0E865785952E9CD152A8B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_us-gaap_FairValueHedgingMember_38BF7C29B55C11E10E0152E9CD15A58F" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_5925C2F2E62F3B63102552E9CD10235D" xlink:to="loc_us-gaap_FairValueHedgingMember_38BF7C29B55C11E10E0152E9CD15A58F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_49ABFDC66FE6EB81E52652E9CD1544A2" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_3CAB0E6D29B7CDA93D5C52E9CD102F53" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_49ABFDC66FE6EB81E52652E9CD1544A2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_49ABFDC66FE6EB81E52652E9CD1544A2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_49ABFDC66FE6EB81E52652E9CD1544A2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_776175335973C0EFEF3152E9CD15ADE2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629" xlink:to="loc_us-gaap_InterestRateSwapMember_776175335973C0EFEF3152E9CD15ADE2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignExchangeContractMember" xlink:label="loc_us-gaap_ForeignExchangeContractMember_EAEA23C654E2D8AD822652E9CD16E29A" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_B388C08B029E790BF63F52E9CD155629" xlink:to="loc_us-gaap_ForeignExchangeContractMember_EAEA23C654E2D8AD822652E9CD16E29A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax_71D27DEAADDF1727B2B952E9CD16ABD1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax_71D27DEAADDF1727B2B952E9CD16ABD1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_951C2CA9B0C40767ED7152E9CD16F059" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_951C2CA9B0C40767ED7152E9CD16F059" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Derivativesqualifyingascashflowhedgesreclassifiedtocostofproductssoldeffectiveportion" xlink:label="loc_mjn_Derivativesqualifyingascashflowhedgesreclassifiedtocostofproductssoldeffectiveportion_5D47D8E410A7BA3E332B52E9CD163DBB" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:to="loc_mjn_Derivativesqualifyingascashflowhedgesreclassifiedtocostofproductssoldeffectiveportion_5D47D8E410A7BA3E332B52E9CD163DBB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_24746734DB04BE4BC8E952E9CD163896" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_BFB4B45D819056020A7652E9CD16322D" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_24746734DB04BE4BC8E952E9CD163896" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DerivativesScheduleOfFairValueOfOutstandingDerivativesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativesFairValueLineItems" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_C475002E6A5037FB33585329C71F570E" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_C475002E6A5037FB33585329C71F570E" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationAxis" xlink:label="loc_us-gaap_HedgingDesignationAxis_D22D13A7DEC83DEA27495329C718D184" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:to="loc_us-gaap_HedgingDesignationAxis_D22D13A7DEC83DEA27495329C718D184" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_D6627DDE1BB45A5007E45329C718C909_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_D22D13A7DEC83DEA27495329C718D184" xlink:to="loc_us-gaap_HedgingDesignationDomain_D6627DDE1BB45A5007E45329C718C909_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_D6627DDE1BB45A5007E45329C718C909" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_D22D13A7DEC83DEA27495329C718D184" xlink:to="loc_us-gaap_HedgingDesignationDomain_D6627DDE1BB45A5007E45329C718C909" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_87B4C375E32CE100FD925329C718F597" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_D6627DDE1BB45A5007E45329C718C909" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_87B4C375E32CE100FD925329C718F597" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_4EAF7E3208FF946C77655329C7185297" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_4EAF7E3208FF946C77655329C7185297" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_4EAF7E3208FF946C77655329C7185297" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_4EAF7E3208FF946C77655329C7185297" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignExchangeContractMember" xlink:label="loc_us-gaap_ForeignExchangeContractMember_ABD1385B35EE10C8BDCC5329C718D470" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF" xlink:to="loc_us-gaap_ForeignExchangeContractMember_ABD1385B35EE10C8BDCC5329C718D470" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_D1466FD282B600CB26115329C7182C3E" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF" xlink:to="loc_us-gaap_InterestRateSwapMember_D1466FD282B600CB26115329C7182C3E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommodityOptionMember" xlink:label="loc_us-gaap_CommodityOptionMember_8894C3B4F11DBBA1627F5329C71973C2" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_E14DDE10D6E1DFAFEB2D5329C7186EDF" xlink:to="loc_us-gaap_CommodityOptionMember_8894C3B4F11DBBA1627F5329C71973C2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_F00AE7D571D202B261E25329C719B153" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_F00AE7D571D202B261E25329C719B153" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_F00AE7D571D202B261E25329C719B153" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_F00AE7D571D202B261E25329C719B153" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_6089FCFAA646A07D36885329C719CF7F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_6089FCFAA646A07D36885329C719CF7F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherAssetsMember" xlink:label="loc_us-gaap_OtherAssetsMember_75FA8FD28C693CD2E2805329C719A63D" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:to="loc_us-gaap_OtherAssetsMember_75FA8FD28C693CD2E2805329C719A63D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccruedLiabilitiesMember" xlink:label="loc_us-gaap_AccruedLiabilitiesMember_FDB24A9383B68C15C37C5329C719190A" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:to="loc_us-gaap_AccruedLiabilitiesMember_FDB24A9383B68C15C37C5329C719190A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherLiabilitiesMember" xlink:label="loc_us-gaap_OtherLiabilitiesMember_0A2A6D7FA05D78F5D43C5329C7194AE6" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8B82FAF32C0F9273834A5329C719A036" xlink:to="loc_us-gaap_OtherLiabilitiesMember_0A2A6D7FA05D78F5D43C5329C7194AE6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_C475523E0C36A264869F5329C71EFD8D" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_601BB37C03D20942EC9D5329C718E481" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_C475523E0C36A264869F5329C71EFD8D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_C475523E0C36A264869F5329C71EFD8D" xlink:to="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_C475523E0C36A264869F5329C71EFD8D" xlink:to="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_us-gaap_CashFlowHedgingMember_0C9CDE241FE062039BE75329C71F7906" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01" xlink:to="loc_us-gaap_CashFlowHedgingMember_0C9CDE241FE062039BE75329C71F7906" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_us-gaap_FairValueHedgingMember_DB8E6E44469E79220F685329C71F2C1C" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_1873680D83DCB95085C25329C71E4C01" xlink:to="loc_us-gaap_FairValueHedgingMember_DB8E6E44469E79220F685329C71F2C1C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_D6AF40EB4CE4D80EE34B5329C71F5064" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_C475002E6A5037FB33585329C71F570E" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_D6AF40EB4CE4D80EE34B5329C71F5064" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_2DAC3D82329FE02AE46E5329C71F6ACE" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_C475002E6A5037FB33585329C71F570E" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_2DAC3D82329FE02AE46E5329C71F6ACE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_A3F90241CBCFD27AEACA5329C71FD24F" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_C475002E6A5037FB33585329C71F570E" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_A3F90241CBCFD27AEACA5329C71FD24F" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DerivativesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EarningsPerShare" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EarningsPerShareDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EarningsPerShareTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EmployeeStockBenefitPlans" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_672C95C6F0C2A8A56D60A4F40FF829EB" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_58E20B1D8C432CFFED08A4F40FF791BC" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_672C95C6F0C2A8A56D60A4F40FF829EB" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_58E20B1D8C432CFFED08A4F40FF791BC" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_A7000E31773FAFC4CE44A4F40FF74D97" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_58E20B1D8C432CFFED08A4F40FF791BC" xlink:to="loc_us-gaap_AwardTypeAxis_A7000E31773FAFC4CE44A4F40FF74D97" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_A7000E31773FAFC4CE44A4F40FF74D97" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_A7000E31773FAFC4CE44A4F40FF74D97" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_2121A53AE67ED4E6F782A4F40FF7764B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496" xlink:to="loc_us-gaap_EmployeeStockOptionMember_2121A53AE67ED4E6F782A4F40FF7764B" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_PerformanceShareAwardsMember" xlink:label="loc_mjn_PerformanceShareAwardsMember_98A0E3AEB1D678AF7EB7A4F40FF8A415" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496" xlink:to="loc_mjn_PerformanceShareAwardsMember_98A0E3AEB1D678AF7EB7A4F40FF8A415" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_E104AF4B2B8943E7D3D2A4F40FF8D56A" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_64CB92AF62399DF971CBA4F40FF75496" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_E104AF4B2B8943E7D3D2A4F40FF8D56A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_416AF3CB9C9301261598A4F40FF82BC7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_672C95C6F0C2A8A56D60A4F40FF829EB" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_416AF3CB9C9301261598A4F40FF82BC7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_7B016EC15D42EE63B59FA4F40FF893FE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_416AF3CB9C9301261598A4F40FF82BC7" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_7B016EC15D42EE63B59FA4F40FF893FE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_CD9B62CF9B952FF3F51AA4F40FF936DE" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_416AF3CB9C9301261598A4F40FF82BC7" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_CD9B62CF9B952FF3F51AA4F40FF936DE" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansDetails2" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_65C6ED16F54E136174D24F5383BEE589" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_65C6ED16F54E136174D24F5383BEE589" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_4AD39F328D2D240E37724F5383BE566C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_65C6ED16F54E136174D24F5383BEE589" xlink:to="loc_us-gaap_AwardTypeAxis_4AD39F328D2D240E37724F5383BE566C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_4AD39F328D2D240E37724F5383BE566C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_4AD39F328D2D240E37724F5383BE566C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_76F270394FA21EDB4CA74F5383BE61AD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826" xlink:to="loc_us-gaap_EmployeeStockOptionMember_76F270394FA21EDB4CA74F5383BE61AD" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_PerformanceShareAwardsMember" xlink:label="loc_mjn_PerformanceShareAwardsMember_CDBC825D95C1368D64574F5383BE13AF" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826" xlink:to="loc_mjn_PerformanceShareAwardsMember_CDBC825D95C1368D64574F5383BE13AF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_86CF314BCF6EE426A5DC4F5383BE6DFB" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_A27B8A22261BB1D294D94F5383BEE826" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_86CF314BCF6EE426A5DC4F5383BE6DFB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_365781AEE38F4DACEE574F5383BE7486" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_365781AEE38F4DACEE574F5383BE7486" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_DC6C86930189DC2EE9D74F5383BEBD67" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_DC6C86930189DC2EE9D74F5383BEBD67" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_39CA26B364E6344B6EEE4F5383BE5025" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_39CA26B364E6344B6EEE4F5383BE5025" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_C6B7167068877F9607764F5383BEE7DD" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_C6B7167068877F9607764F5383BEE7DD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_3162A2B4AB27BE23CFDB4F5383BF3D54" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_3162A2B4AB27BE23CFDB4F5383BF3D54" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DB3A8D0D03CD09D5CB594F5383BF6285" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_28C32FE0499B79759D804F5383BE0EA2" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DB3A8D0D03CD09D5CB594F5383BF6285" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EmployeeStockBenefitPlansTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Equity" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EquityAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_42A449F867526475C2B7ECD4F92EA289" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_53BEC00A46563548D465ECD4F92E382E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_42A449F867526475C2B7ECD4F92EA289" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_53BEC00A46563548D465ECD4F92E382E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_1D71A51B45734A7643BAECD4F92E9BD1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_53BEC00A46563548D465ECD4F92E382E" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_1D71A51B45734A7643BAECD4F92E9BD1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_1D71A51B45734A7643BAECD4F92E9BD1" xlink:to="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_1D71A51B45734A7643BAECD4F92E9BD1" xlink:to="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_E01E1A24E057BF11A82DECD4F92ECE85" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_E01E1A24E057BF11A82DECD4F92ECE85" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_68F096FBC2C56A51ADB3ECD4F92E9590" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_68F096FBC2C56A51ADB3ECD4F92E9590" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_6A35077092EDE4F8BCC9ECD4F92EE499" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_6A35077092EDE4F8BCC9ECD4F92EE499" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember_D86E4217EA2EA9F1001AECD4F92E6496" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:to="loc_us-gaap_NoncontrollingInterestMember_D86E4217EA2EA9F1001AECD4F92E6496" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_RedeemableNoncontrollingInterestsMember" xlink:label="loc_mjn_RedeemableNoncontrollingInterestsMember_8579CA034B3E1824DF91ECD4F92E6A74" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0D5C9C9F5240E6AF5DFBECD4F92E3B48" xlink:to="loc_mjn_RedeemableNoncontrollingInterestsMember_8579CA034B3E1824DF91ECD4F92E6A74" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_42A449F867526475C2B7ECD4F92EA289" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_E4ACDF84688C5DEF3CF5ECD4F92F0410" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_E4ACDF84688C5DEF3CF5ECD4F92F0410" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_F4A9EB638A0230F4166EECD4F92F10B0" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_F4A9EB638A0230F4166EECD4F92F10B0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_48C1D0D9C9D4D38A196AECD4F92FF227" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_48C1D0D9C9D4D38A196AECD4F92FF227" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_FF5BE03AF68BDFC0D188ECD4F92FA156" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_61B6192CCEAFE00D79DFECD4F92F3DDC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_FF5BE03AF68BDFC0D188ECD4F92FA156" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EquityEquityScheduleOfStockByClassDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_44CC1DBC53CE8443C75752EFD66891D1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_44CC1DBC53CE8443C75752EFD66891D1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_565EE0A330820B3300F452EFD668E65E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_44CC1DBC53CE8443C75752EFD66891D1" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_565EE0A330820B3300F452EFD668E65E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_565EE0A330820B3300F452EFD668E65E" xlink:to="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_565EE0A330820B3300F452EFD668E65E" xlink:to="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_D9AC4A17D3E459BD03E552EFD66830B4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38" xlink:to="loc_us-gaap_CommonStockMember_D9AC4A17D3E459BD03E552EFD66830B4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_885334AEEE5B2D405CE252EFD66986A5" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_5265B604BA9E64B65D1D52EFD668ED38" xlink:to="loc_us-gaap_TreasuryStockMember_885334AEEE5B2D405CE252EFD66986A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_AA803CE4ACA3F278E7E052EFD669CB75" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_CommonStockSharesIssued_AA803CE4ACA3F278E7E052EFD669CB75" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_B8E73ADF7EDBBF344A8A52EFD66915A6" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_TreasuryStockShares_B8E73ADF7EDBBF344A8A52EFD66915A6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_485CA5D314377D0A89AD52EFD6691574" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan_485CA5D314377D0A89AD52EFD6691574" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_A99459A8F7A0CE7CFAD052EFD66945CB" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_TreasuryStockValue_A99459A8F7A0CE7CFAD052EFD66945CB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockReissuedAtLowerThanRepurchasePrice" xlink:label="loc_us-gaap_TreasuryStockReissuedAtLowerThanRepurchasePrice_1A2E83B3C0F33F1E88AD52EFD669A086" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_TreasuryStockReissuedAtLowerThanRepurchasePrice_1A2E83B3C0F33F1E88AD52EFD669A086" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:label="loc_us-gaap_TreasuryStockRetiredCostMethodAmount_6380061DD85A444AFADC52EFD6692085" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_A2769A6139495BE4DBB452EFD6695236" xlink:to="loc_us-gaap_TreasuryStockRetiredCostMethodAmount_6380061DD85A444AFADC52EFD6692085" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EquityNarrativeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityClassOfTreasuryStockLineItems" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ClassOfTreasuryStockTable" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_9021BCC26A929FF9205F53814052E229" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_9021BCC26A929FF9205F53814052E229" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_FBB7C4F5232AEB1D9A765381405258D2_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_9021BCC26A929FF9205F53814052E229" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_FBB7C4F5232AEB1D9A765381405258D2_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_FBB7C4F5232AEB1D9A765381405258D2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_9021BCC26A929FF9205F53814052E229" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_FBB7C4F5232AEB1D9A765381405258D2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_304AF79F38456B503C0953814052FEEE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_FBB7C4F5232AEB1D9A765381405258D2" xlink:to="loc_us-gaap_InterestRateSwapMember_304AF79F38456B503C0953814052FEEE" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_AmountofCashEqualtoRepurchasePriceAxis" xlink:label="loc_mjn_AmountofCashEqualtoRepurchasePriceAxis_08177907BE20055B49ED53814052D486" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:to="loc_mjn_AmountofCashEqualtoRepurchasePriceAxis_08177907BE20055B49ED53814052D486" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_AmountofCashEqualtoRepurchasePriceDomain" xlink:label="loc_mjn_AmountofCashEqualtoRepurchasePriceDomain_121E3B53F897E7BF773253814052FE83_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_mjn_AmountofCashEqualtoRepurchasePriceAxis_08177907BE20055B49ED53814052D486" xlink:to="loc_mjn_AmountofCashEqualtoRepurchasePriceDomain_121E3B53F897E7BF773253814052FE83_default" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_AmountofCashEqualtoRepurchasePriceDomain" xlink:label="loc_mjn_AmountofCashEqualtoRepurchasePriceDomain_121E3B53F897E7BF773253814052FE83" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_mjn_AmountofCashEqualtoRepurchasePriceAxis_08177907BE20055B49ED53814052D486" xlink:to="loc_mjn_AmountofCashEqualtoRepurchasePriceDomain_121E3B53F897E7BF773253814052FE83" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_387F52F16C4555DAB950538140522F20" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_387F52F16C4555DAB950538140522F20" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_387F52F16C4555DAB950538140522F20" xlink:to="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_387F52F16C4555DAB950538140522F20" xlink:to="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_74A0930C10EDBC909EE85381405290C7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B" xlink:to="loc_us-gaap_TreasuryStockMember_74A0930C10EDBC909EE85381405290C7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ParentMember" xlink:label="loc_us-gaap_ParentMember_BFCBD06C6CEF5B6CC804538140522B6D" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_57F956A6D9B25C3EF04F53814052B77B" xlink:to="loc_us-gaap_ParentMember_BFCBD06C6CEF5B6CC804538140522B6D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_90DF7DA529DAC09A05F2538140520DF0" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_90DF7DA529DAC09A05F2538140520DF0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_90DF7DA529DAC09A05F2538140520DF0" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_90DF7DA529DAC09A05F2538140520DF0" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_SeptembertwothousandthirteenrepurchaseMemberMember" xlink:label="loc_mjn_SeptembertwothousandthirteenrepurchaseMemberMember_B6EA066FFD50B8F85259538140527D3B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67" xlink:to="loc_mjn_SeptembertwothousandthirteenrepurchaseMemberMember_B6EA066FFD50B8F85259538140527D3B" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_RepurchaseAuthorization2015Member" xlink:label="loc_mjn_RepurchaseAuthorization2015Member_33820594EC80E1F8B6FD538140525C9A" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67" xlink:to="loc_mjn_RepurchaseAuthorization2015Member_33820594EC80E1F8B6FD538140525C9A" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_DecreaseinvalueofstockMember" xlink:label="loc_mjn_DecreaseinvalueofstockMember_85D0574C167EC326E4E453814052D782" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_67A65B6EA93362A66DEA53814052CC67" xlink:to="loc_mjn_DecreaseinvalueofstockMember_85D0574C167EC326E4E453814052D782" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_865D45BC23F782E74C7D538140528B37" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_7CFB20694A7DB886838F5381404CEF5F" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_865D45BC23F782E74C7D538140528B37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8DF37DD68330880B6190538140524176_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_865D45BC23F782E74C7D538140528B37" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8DF37DD68330880B6190538140524176_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8DF37DD68330880B6190538140524176" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_865D45BC23F782E74C7D538140528B37" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8DF37DD68330880B6190538140524176" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_NutricionParaElConosurSaMember" xlink:label="loc_mjn_NutricionParaElConosurSaMember_A3FEC6BA6E861C30EB13538140521BDF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8DF37DD68330880B6190538140524176" xlink:to="loc_mjn_NutricionParaElConosurSaMember_A3FEC6BA6E861C30EB13538140521BDF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_E1C21374B2C58D270223538140523073" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_E1C21374B2C58D270223538140523073" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_7EF8F0BF29A70D92C0BA538140522FEE" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_dei_DocumentFiscalYearFocus_7EF8F0BF29A70D92C0BA538140522FEE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TreasuryStockRetiredCostMethodAmount" xlink:label="loc_us-gaap_TreasuryStockRetiredCostMethodAmount_BF44B1A669B966CA4E8E53814053CCB9" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_TreasuryStockRetiredCostMethodAmount_BF44B1A669B966CA4E8E53814053CCB9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_760B225DE25B9819D4B153814053806E" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_760B225DE25B9819D4B153814053806E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xlink:label="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_C574A2231502CF5E354553814053C156" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_C574A2231502CF5E354553814053C156" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_StockRepurchaseProgramPercentageofSharesRetired" xlink:label="loc_mjn_StockRepurchaseProgramPercentageofSharesRetired_D9185B8F0F20A841A001538140538E9F" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_mjn_StockRepurchaseProgramPercentageofSharesRetired_D9185B8F0F20A841A001538140538E9F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_5D1F5F8907B06870A20A538140531AA6" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage_5D1F5F8907B06870A20A538140531AA6" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercent" xlink:label="loc_mjn_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercent_5FA46C1B858E75CE68B7538140534C8C" xlink:type="locator" />
    <definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_9D3CE4B7DCA2A64EC19F538140521E94" xlink:to="loc_mjn_BusinessCombinationStepAcquisitionAdditionalEquityInterestAcquiredPercent_5FA46C1B858E75CE68B7538140534C8C" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EquityReclassificationAdjustmentsOutOfAccumulatedOtherComprehensiveLossDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_DFC1F7F2AE78362DA65753587CC97216" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_48F96F878458339943E353587CC8BA47" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_DFC1F7F2AE78362DA65753587CC97216" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_48F96F878458339943E353587CC8BA47" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_D7E8FE7A4D108AF61D7153587CC857D4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_48F96F878458339943E353587CC8BA47" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_D7E8FE7A4D108AF61D7153587CC857D4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_D7E8FE7A4D108AF61D7153587CC857D4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_D7E8FE7A4D108AF61D7153587CC857D4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignExchangeMember" xlink:label="loc_us-gaap_ForeignExchangeMember_05C1500D29DB20841D5553587CC8645C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077" xlink:to="loc_us-gaap_ForeignExchangeMember_05C1500D29DB20841D5553587CC8645C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommodityOptionMember" xlink:label="loc_us-gaap_CommodityOptionMember_A911F806922901BDF65F53587CC8FF09" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077" xlink:to="loc_us-gaap_CommodityOptionMember_A911F806922901BDF65F53587CC8FF09" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_91B408793C81221BC02153587CC8BA59" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_2CCB9D40D2B2A7E0FD5353587CC8E077" xlink:to="loc_us-gaap_InterestRateSwapMember_91B408793C81221BC02153587CC8BA59" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_743B529EFFB3F9BD4C8353587CC810C3" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_48F96F878458339943E353587CC8BA47" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_743B529EFFB3F9BD4C8353587CC810C3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_743B529EFFB3F9BD4C8353587CC810C3" xlink:to="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_743B529EFFB3F9BD4C8353587CC810C3" xlink:to="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_861EBA8D11E8809D439C53587CC88937" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_861EBA8D11E8809D439C53587CC88937" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_DAAB8727E0C62541E34253587CC8D15D" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_874278EEE55AFA834FE953587CC8A768" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_DAAB8727E0C62541E34253587CC8D15D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_1D740AEDB5078E3F5DE853587CC86B8C" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_48F96F878458339943E353587CC8BA47" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_1D740AEDB5078E3F5DE853587CC86B8C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_862A8663CB926B7DAFBC53587CC8FAAD_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_1D740AEDB5078E3F5DE853587CC86B8C" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_862A8663CB926B7DAFBC53587CC8FAAD_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_862A8663CB926B7DAFBC53587CC8FAAD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_1D740AEDB5078E3F5DE853587CC86B8C" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_862A8663CB926B7DAFBC53587CC8FAAD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_7F50D771FF358BC1607A53587CC88E7D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_862A8663CB926B7DAFBC53587CC8FAAD" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_7F50D771FF358BC1607A53587CC88E7D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_us-gaap_CostOfGoodsSold_31E9969B588C91522D3D53587CC90E08" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_DFC1F7F2AE78362DA65753587CC97216" xlink:to="loc_us-gaap_CostOfGoodsSold_31E9969B588C91522D3D53587CC90E08" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_7642197358482B31A2DF53587CC9A084" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_DFC1F7F2AE78362DA65753587CC97216" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_7642197358482B31A2DF53587CC9A084" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_4F9AEFA375B1990FE34453587CC9A857" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_DFC1F7F2AE78362DA65753587CC97216" xlink:to="loc_us-gaap_ProfitLoss_4F9AEFA375B1990FE34453587CC9A857" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/EquityTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Goodwill" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/GoodwillDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_4EAD9B393FAC3EAD3220531F0ED0539E" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_3A82B53B31F653185BBE531F0ED0BF59" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_4EAD9B393FAC3EAD3220531F0ED0539E" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_3A82B53B31F653185BBE531F0ED0BF59" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_D4C63838FF76A16CAD21531F0ED0E21E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_3A82B53B31F653185BBE531F0ED0BF59" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_D4C63838FF76A16CAD21531F0ED0E21E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_D4C63838FF76A16CAD21531F0ED0E21E" xlink:to="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_D4C63838FF76A16CAD21531F0ED0E21E" xlink:to="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AsiaMember" xlink:label="loc_us-gaap_AsiaMember_D6A5BBD34309E382D203531F0ED0D4DD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86" xlink:to="loc_us-gaap_AsiaMember_D6A5BBD34309E382D203531F0ED0D4DD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LatinAmericaMember" xlink:label="loc_us-gaap_LatinAmericaMember_916EE7520BA7B81C66F1531F0ED064CB" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86" xlink:to="loc_us-gaap_LatinAmericaMember_916EE7520BA7B81C66F1531F0ED064CB" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_NorthAmericaEuropeMember" xlink:label="loc_mjn_NorthAmericaEuropeMember_7D1FCA7A4901427A1FB6531F0ED03414" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_985BE7D521568DDAA7D5531F0ED0CC86" xlink:to="loc_mjn_NorthAmericaEuropeMember_7D1FCA7A4901427A1FB6531F0ED03414" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_F9CDC688480B32F95E5D531F0ED0FEEE" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4EAD9B393FAC3EAD3220531F0ED0539E" xlink:to="loc_us-gaap_Goodwill_F9CDC688480B32F95E5D531F0ED0FEEE" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_71DF5234C300501135CB531F0ED0FAD8" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4EAD9B393FAC3EAD3220531F0ED0539E" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_71DF5234C300501135CB531F0ED0FAD8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_A4AE1C586EDBAF644FE8531F0ED0755B" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4EAD9B393FAC3EAD3220531F0ED0539E" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_A4AE1C586EDBAF644FE8531F0ED0755B" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/GoodwillTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/IncomeTaxes" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/IncomeTaxesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Inventories" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/InventoriesDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/InventoriesTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/LongLivedAssets" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/LongLivedAssetsLongLivedAssetsNarrativeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2C3490C778D89A5028CF540FD07EDE20" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_99661A389D29C1DF629A540FD07EB00D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2C3490C778D89A5028CF540FD07EDE20" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_99661A389D29C1DF629A540FD07EB00D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_75C791227AAF57476EC3540FD07E53E2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_99661A389D29C1DF629A540FD07EB00D" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_75C791227AAF57476EC3540FD07E53E2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_7265AA60F11DD71CCDE6540FD07E69B5_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_75C791227AAF57476EC3540FD07E53E2" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_7265AA60F11DD71CCDE6540FD07E69B5_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_7265AA60F11DD71CCDE6540FD07E69B5" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_75C791227AAF57476EC3540FD07E53E2" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_7265AA60F11DD71CCDE6540FD07E69B5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_B141F51A516304ACAF8E540FD07EAE07" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7265AA60F11DD71CCDE6540FD07E69B5" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_B141F51A516304ACAF8E540FD07EAE07" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_F8B46AB8D48638A3A0FD540FD07E22C6" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_99661A389D29C1DF629A540FD07EB00D" xlink:to="loc_us-gaap_StatementGeographicalAxis_F8B46AB8D48638A3A0FD540FD07E22C6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_871C968AAF6BA25DC7E3540FD07E695E_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_F8B46AB8D48638A3A0FD540FD07E22C6" xlink:to="loc_us-gaap_SegmentGeographicalDomain_871C968AAF6BA25DC7E3540FD07E695E_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_871C968AAF6BA25DC7E3540FD07E695E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_F8B46AB8D48638A3A0FD540FD07E22C6" xlink:to="loc_us-gaap_SegmentGeographicalDomain_871C968AAF6BA25DC7E3540FD07E695E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_VE" xlink:label="loc_country_VE_A75B783D12758763D4E7540FD07EA3A2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_871C968AAF6BA25DC7E3540FD07E695E" xlink:to="loc_country_VE_A75B783D12758763D4E7540FD07EA3A2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_D9D6BCF5046F133247AB540FD07EDA2C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2C3490C778D89A5028CF540FD07EDE20" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_D9D6BCF5046F133247AB540FD07EDA2C" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ChangeinCapitalExpendituresNotPaid" xlink:label="loc_mjn_ChangeinCapitalExpendituresNotPaid_9888F862BF1DB4B250F8540FD07E87F0" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2C3490C778D89A5028CF540FD07EDE20" xlink:to="loc_mjn_ChangeinCapitalExpendituresNotPaid_9888F862BF1DB4B250F8540FD07E87F0" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/LongLivedAssetsLongLivedAssetsOtherIntangibleAssetsDetails" xlink:type="extended">
    <loc xlink:href="mjn-20160331.xsd#mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:label="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:type="locator" />
    <loc xlink:href="mjn-20160331.xsd#mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:label="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_586B9935A87B6ED839BE4E7C0AFD0481" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_586B9935A87B6ED839BE4E7C0AFD0481" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_13F201ACA1629E0663394E7C0AFDC64B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_586B9935A87B6ED839BE4E7C0AFD0481" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_13F201ACA1629E0663394E7C0AFDC64B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_13F201ACA1629E0663394E7C0AFDC64B" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_13F201ACA1629E0663394E7C0AFDC64B" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember_C60BF01E961A9A8A43C74E7C0AFEE11F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8" xlink:to="loc_us-gaap_TrademarksMember_C60BF01E961A9A8A43C74E7C0AFEE11F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_6BE6522AFA6314C5C2804E7C0AFEDD81" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_C96F7590245D4EF6934D4E7C0AFD59A8" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_6BE6522AFA6314C5C2804E7C0AFEDD81" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_391839419980FAA5AB424E7C0AFED5B7" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_586B9935A87B6ED839BE4E7C0AFD0481" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_391839419980FAA5AB424E7C0AFED5B7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_391839419980FAA5AB424E7C0AFED5B7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_391839419980FAA5AB424E7C0AFED5B7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ComputerSoftwareIntangibleAssetMember" xlink:label="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_47AE27658983A6964C9F4E7C0AFE42AB" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1" xlink:to="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_47AE27658983A6964C9F4E7C0AFE42AB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_01B9D7D52520818896BC4E7C0AFE2297" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_13AE52011C7AEDA5CD794E7C0AFE74C1" xlink:to="loc_us-gaap_CustomerRelationshipsMember_01B9D7D52520818896BC4E7C0AFE2297" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_6F8FBE3E8FF8FA477F824E7C0AFE83AD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_6F8FBE3E8FF8FA477F824E7C0AFE83AD" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Indefinitelivedintangibleassetszeroamortization" xlink:label="loc_mjn_Indefinitelivedintangibleassetszeroamortization_11D8A66550C3D1E717AE4E7C0FA0C5A5" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_mjn_Indefinitelivedintangibleassetszeroamortization_11D8A66550C3D1E717AE4E7C0FA0C5A5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_642B7BAEC589E9330E154E7C0AFE605A" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_642B7BAEC589E9330E154E7C0AFE605A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_FF05D2C44FEB36B61D374E7C0AFE57B4" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_FF05D2C44FEB36B61D374E7C0AFE57B4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7F06ADE3CB3EE40E37FE4E7C0AFE6160" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7F06ADE3CB3EE40E37FE4E7C0AFE6160" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_E43C59D0283EB3E3E9844E7C0AFE126A" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_03B5F90AA1BBC24C21424E7C0AFECA7B" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_E43C59D0283EB3E3E9844E7C0AFE126A" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/LongLivedAssetsPropertyPlantAndEquipmentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_61534394F5696C0CC7C84E8290F6170D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D860CF73909C450A04134E8290F6119C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_61534394F5696C0CC7C84E8290F6170D" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D860CF73909C450A04134E8290F6119C" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2678311ABA6B3277BEE94E8290F68751" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_D860CF73909C450A04134E8290F6119C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2678311ABA6B3277BEE94E8290F68751" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2678311ABA6B3277BEE94E8290F68751" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2678311ABA6B3277BEE94E8290F68751" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_8F2C41D2682EE18761804E8290F67F9D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:to="loc_us-gaap_LandMember_8F2C41D2682EE18761804E8290F67F9D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_86E66EF6E43CD9AAD6F04E8290F6D035" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_86E66EF6E43CD9AAD6F04E8290F6D035" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_1159236D76C4CB7BE8E84E8290F6F9CD" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_1159236D76C4CB7BE8E84E8290F6F9CD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_278B5A025610E19FDFA34E8290F66B8E" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E924AA06AFD6DDDC43DB4E8290F6432F" xlink:to="loc_us-gaap_ConstructionInProgressMember_278B5A025610E19FDFA34E8290F66B8E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_6AE468CB434C40A205BC4E8290F69B01" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_61534394F5696C0CC7C84E8290F6170D" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_6AE468CB434C40A205BC4E8290F69B01" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_1E0C53565662109A4FFF4E8290F6EF1F" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_61534394F5696C0CC7C84E8290F6170D" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_1E0C53565662109A4FFF4E8290F6EF1F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_8FB010B01E57605BFF934E8290F653C7" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_61534394F5696C0CC7C84E8290F6170D" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_8FB010B01E57605BFF934E8290F653C7" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/LongLivedAssetsTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/NetEarningsAttributableToNoncontrollingInterests" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/NetEarningsAttributableToNoncontrollingInterestsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterestLineItems" xlink:label="loc_us-gaap_MinorityInterestLineItems_A0BCC36EDBC1D9C8AA83A4F41243C844" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterestTable" xlink:label="loc_us-gaap_MinorityInterestTable_263A90CF2A579567F009A4F412429BA1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems_A0BCC36EDBC1D9C8AA83A4F41243C844" xlink:to="loc_us-gaap_MinorityInterestTable_263A90CF2A579567F009A4F412429BA1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_86504192E433E5DC449CA4F41242B246" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_263A90CF2A579567F009A4F412429BA1" xlink:to="loc_us-gaap_StatementGeographicalAxis_86504192E433E5DC449CA4F41242B246" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_86504192E433E5DC449CA4F41242B246" xlink:to="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_86504192E433E5DC449CA4F41242B246" xlink:to="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_CN" xlink:label="loc_country_CN_D6F5D1CA16252D225C15A4F41243157E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6" xlink:to="loc_country_CN_D6F5D1CA16252D225C15A4F41243157E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_AR" xlink:label="loc_country_AR_13F5755A38D139728F58A4F412430639" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6" xlink:to="loc_country_AR_13F5755A38D139728F58A4F412430639" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_ID" xlink:label="loc_country_ID_14FBFD6D7A0539B6FC88A4F412432826" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_8642925CA87E5EF49101A4F4124248D6" xlink:to="loc_country_ID_14FBFD6D7A0539B6FC88A4F412432826" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_062DB8B6B6F185966200A4F41243CD25" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_A0BCC36EDBC1D9C8AA83A4F41243C844" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_062DB8B6B6F185966200A4F41243CD25" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/Organization" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/OrganizationDetails" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/OtherIncomeExpensesNet" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/OtherIncomeExpensesNetDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_B406CCDA6DB4276F363A54A0B1053575" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_B406CCDA6DB4276F363A54A0B1053575" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanAxis" xlink:label="loc_us-gaap_RestructuringPlanAxis_E86DA95473E04E3F489854A0B1051ED2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_B406CCDA6DB4276F363A54A0B1053575" xlink:to="loc_us-gaap_RestructuringPlanAxis_E86DA95473E04E3F489854A0B1051ED2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_C027C1DDDEA8E4D14EB654A0B1052ECF_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_E86DA95473E04E3F489854A0B1051ED2" xlink:to="loc_us-gaap_RestructuringPlanDomain_C027C1DDDEA8E4D14EB654A0B1052ECF_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_C027C1DDDEA8E4D14EB654A0B1052ECF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_E86DA95473E04E3F489854A0B1051ED2" xlink:to="loc_us-gaap_RestructuringPlanDomain_C027C1DDDEA8E4D14EB654A0B1052ECF" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_FuelforGrowthMember" xlink:label="loc_mjn_FuelforGrowthMember_C3053A62DDCF4F9E149E54A0B105BC90" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_C027C1DDDEA8E4D14EB654A0B1052ECF" xlink:to="loc_mjn_FuelforGrowthMember_C3053A62DDCF4F9E149E54A0B105BC90" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_F443F9617E15B4F8C0DB54A0B105E12E" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_B406CCDA6DB4276F363A54A0B1053575" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_F443F9617E15B4F8C0DB54A0B105E12E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_BF28AD1FB3A2B1EE5B2A54A0B1051277_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_F443F9617E15B4F8C0DB54A0B105E12E" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_BF28AD1FB3A2B1EE5B2A54A0B1051277_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_BF28AD1FB3A2B1EE5B2A54A0B1051277" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_F443F9617E15B4F8C0DB54A0B105E12E" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_BF28AD1FB3A2B1EE5B2A54A0B1051277" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_DC51AB900FB4D7DD2A1454A0B106B87E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_BF28AD1FB3A2B1EE5B2A54A0B1051277" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_DC51AB900FB4D7DD2A1454A0B106B87E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_2E56B90F827F07906AD854A0B106E700" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_B406CCDA6DB4276F363A54A0B1053575" xlink:to="loc_us-gaap_StatementGeographicalAxis_2E56B90F827F07906AD854A0B106E700" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_8411737D0CB3205159F754A0B106A236_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_2E56B90F827F07906AD854A0B106E700" xlink:to="loc_us-gaap_SegmentGeographicalDomain_8411737D0CB3205159F754A0B106A236_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_8411737D0CB3205159F754A0B106A236" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_2E56B90F827F07906AD854A0B106E700" xlink:to="loc_us-gaap_SegmentGeographicalDomain_8411737D0CB3205159F754A0B106A236" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_VE" xlink:label="loc_country_VE_132D729347E505860F0454A0B10679AB" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_8411737D0CB3205159F754A0B106A236" xlink:to="loc_country_VE_132D729347E505860F0454A0B10679AB" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_61ECB16AC03274E29B5454A0B107ECF1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_61ECB16AC03274E29B5454A0B107ECF1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_16C114403EC709674E9254A0B107021B" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_16C114403EC709674E9254A0B107021B" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_SeveranceAndOtherCosts" xlink:label="loc_mjn_SeveranceAndOtherCosts_7AAE2A9BCB310AB1B54C54A0B107B0A2" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_mjn_SeveranceAndOtherCosts_7AAE2A9BCB310AB1B54C54A0B107B0A2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_CB6231E941F367DCA4F354A0B1075E9D" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_CB6231E941F367DCA4F354A0B1075E9D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_FAA490CC6911E887F30054A0B107E27D" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_FAA490CC6911E887F30054A0B107E27D" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss" xlink:label="loc_mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss_AF73A8600051EA2673F554A0B107CC85" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss_AF73A8600051EA2673F554A0B107CC85" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_0D36FD2D477372FFF43854A0B1079A8D" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EF577A244325236DF70A54A0B106D3BB" xlink:to="loc_us-gaap_RestructuringCharges_0D36FD2D477372FFF43854A0B1079A8D" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/OtherIncomeExpensesNetTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlans" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlansDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_98C1D419172016E65442531E17A54E26" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_98C1D419172016E65442531E17A54E26" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_532BB5DECB3DD23A40F8531E17A55F90" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_98C1D419172016E65442531E17A54E26" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_532BB5DECB3DD23A40F8531E17A55F90" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_532BB5DECB3DD23A40F8531E17A55F90" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_532BB5DECB3DD23A40F8531E17A55F90" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_19FA66072B9F1EBB700F531E17A50A55" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_19FA66072B9F1EBB700F531E17A50A55" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_BB4CEF374E30483811C6531E17A5182A" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_803DD523DC6B0BF90F9E531E17A54F61" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_BB4CEF374E30483811C6531E17A5182A" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_DefinedBenefitPlanNetPeriodicBenefitCostExcludingSettlementsCurtailmentsandActuarialGainsLosses" xlink:label="loc_mjn_DefinedBenefitPlanNetPeriodicBenefitCostExcludingSettlementsCurtailmentsandActuarialGainsLosses_E60070E0EA8CAF6D1CF5531E17A5E50B" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_mjn_DefinedBenefitPlanNetPeriodicBenefitCostExcludingSettlementsCurtailmentsandActuarialGainsLosses_E60070E0EA8CAF6D1CF5531E17A5E50B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_84C3246D6D4828A3AC9F531E17A58784" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_84C3246D6D4828A3AC9F531E17A58784" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_5BF9F49413D587777564531E17A54FB7" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_5BF9F49413D587777564531E17A54FB7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_83D73015A4D8B82EB70E531E17A6F84D" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_83D73015A4D8B82EB70E531E17A6F84D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_002B195301410AA7BD4E531E17A64223" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_002B195301410AA7BD4E531E17A64223" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_214DE4360F72BDD16733531E17A65DD4" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_29F78A07C4D295905C67531E17A51A74" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_214DE4360F72BDD16733531E17A65DD4" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/PensionAndOtherPostEmploymentBenefitPlansTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/RestructuringRestructuring" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/RestructuringRestructuringNarrativeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_3EBAEB797EF712328BEF53587DAFEE9D" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_3EBAEB797EF712328BEF53587DAFEE9D" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_BB9935C771D6DA76543353587DADC27F" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_BB9935C771D6DA76543353587DADC27F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_BB9935C771D6DA76543353587DADC27F" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_BB9935C771D6DA76543353587DADC27F" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_18B98C61D06837F82A4253587DAD5242" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_18B98C61D06837F82A4253587DAD5242" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_6B71C16EAB0592EFE97653587DAE0311" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_40D50F86FD01AD6F535C53587DADA296" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_6B71C16EAB0592EFE97653587DAE0311" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_BA995DBC411CF22955E553587DAECDD3" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:to="loc_us-gaap_StatementScenarioAxis_BA995DBC411CF22955E553587DAECDD3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_2184831A2227223ACC6A53587DAEB9E7_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_BA995DBC411CF22955E553587DAECDD3" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_2184831A2227223ACC6A53587DAEB9E7_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_2184831A2227223ACC6A53587DAEB9E7" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_BA995DBC411CF22955E553587DAECDD3" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_2184831A2227223ACC6A53587DAEB9E7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_ACE640162E20F96BB33953587DAEFF04" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_2184831A2227223ACC6A53587DAEB9E7" xlink:to="loc_us-gaap_ScenarioForecastMember_ACE640162E20F96BB33953587DAEFF04" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_530FE1CC6E39AFC0925B53587DAEED18" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_530FE1CC6E39AFC0925B53587DAEED18" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_530FE1CC6E39AFC0925B53587DAEED18" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_530FE1CC6E39AFC0925B53587DAEED18" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_1D47A4D7D91AFD4ED32553587DAEB949" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:to="loc_us-gaap_EmployeeSeveranceMember_1D47A4D7D91AFD4ED32553587DAEB949" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ContractTerminationMember" xlink:label="loc_us-gaap_ContractTerminationMember_9DE262CC824004CCA7A553587DAEE565" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:to="loc_us-gaap_ContractTerminationMember_9DE262CC824004CCA7A553587DAEE565" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherRestructuringMember" xlink:label="loc_us-gaap_OtherRestructuringMember_28A2E68350650F72956853587DAE1646" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:to="loc_us-gaap_OtherRestructuringMember_28A2E68350650F72956853587DAE1646" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_AssetWriteoffMember" xlink:label="loc_mjn_AssetWriteoffMember_340F34C4DBE97B2F9F1C53587DAED60A" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5BF169DEBF23A2EBA84653587DAEA0D1" xlink:to="loc_mjn_AssetWriteoffMember_340F34C4DBE97B2F9F1C53587DAED60A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanAxis" xlink:label="loc_us-gaap_RestructuringPlanAxis_15A0B61810CAFEC230E753587DAED5D9" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_7D090E81AC9B6A8498C453587DAD098F" xlink:to="loc_us-gaap_RestructuringPlanAxis_15A0B61810CAFEC230E753587DAED5D9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_DFD3A4B6376E2531805653587DAE4CC9_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_15A0B61810CAFEC230E753587DAED5D9" xlink:to="loc_us-gaap_RestructuringPlanDomain_DFD3A4B6376E2531805653587DAE4CC9_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_DFD3A4B6376E2531805653587DAE4CC9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_15A0B61810CAFEC230E753587DAED5D9" xlink:to="loc_us-gaap_RestructuringPlanDomain_DFD3A4B6376E2531805653587DAE4CC9" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_FuelforGrowthMember" xlink:label="loc_mjn_FuelforGrowthMember_47567F10AE552517F8B053587DAF6D64" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_DFD3A4B6376E2531805653587DAE4CC9" xlink:to="loc_mjn_FuelforGrowthMember_47567F10AE552517F8B053587DAF6D64" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_RestructuringandRelatedCostPaymentPeriod" xlink:label="loc_mjn_RestructuringandRelatedCostPaymentPeriod_AADDCD0479A680CC049A53587DAF1E1D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_3EBAEB797EF712328BEF53587DAFEE9D" xlink:to="loc_mjn_RestructuringandRelatedCostPaymentPeriod_AADDCD0479A680CC049A53587DAF1E1D" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/RestructuringRestructuringRestructuringChargesAndRelatedReserveAssociatedWithFuelForGrowthDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_F889DC35AE60A360450653587DA6669C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_F5ABF114FC6840A0B32C53587DA557CD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_F889DC35AE60A360450653587DA6669C" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_F5ABF114FC6840A0B32C53587DA557CD" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_8E80684341B2F444DE6C53587DA5354C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_F5ABF114FC6840A0B32C53587DA557CD" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_8E80684341B2F444DE6C53587DA5354C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8E80684341B2F444DE6C53587DA5354C" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8E80684341B2F444DE6C53587DA5354C" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_D7BADD3B152666EEB7DE53587DA53B5D" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_D7BADD3B152666EEB7DE53587DA53B5D" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_AED06491DC471767182953587DA5E030" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_29BE716D50A81640752153587DA5CAD4" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_AED06491DC471767182953587DA5E030" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_EEE610DA7DE34352141E53587DA51C00" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_F5ABF114FC6840A0B32C53587DA557CD" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_EEE610DA7DE34352141E53587DA51C00" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_EEE610DA7DE34352141E53587DA51C00" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_EEE610DA7DE34352141E53587DA51C00" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_29D4EA7C9829E0812B2F53587DA689AD" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:to="loc_us-gaap_EmployeeSeveranceMember_29D4EA7C9829E0812B2F53587DA689AD" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ContractTerminationMember" xlink:label="loc_us-gaap_ContractTerminationMember_6B9C84C087C2C3607B4753587DA68C76" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:to="loc_us-gaap_ContractTerminationMember_6B9C84C087C2C3607B4753587DA68C76" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherRestructuringMember" xlink:label="loc_us-gaap_OtherRestructuringMember_96E87680EF7F5F41475B53587DA62136" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:to="loc_us-gaap_OtherRestructuringMember_96E87680EF7F5F41475B53587DA62136" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_AssetWriteoffMember" xlink:label="loc_mjn_AssetWriteoffMember_E526C2F27394D314B5B153587DA6DC9C" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_FA7EA27C3000A4811AD553587DA52D8C" xlink:to="loc_mjn_AssetWriteoffMember_E526C2F27394D314B5B153587DA6DC9C" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanAxis" xlink:label="loc_us-gaap_RestructuringPlanAxis_F3AF996B231265C8948353587DA6DDB2" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_F5ABF114FC6840A0B32C53587DA557CD" xlink:to="loc_us-gaap_RestructuringPlanAxis_F3AF996B231265C8948353587DA6DDB2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_43AB5C91775AC8C92C5953587DA68CD6_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_F3AF996B231265C8948353587DA6DDB2" xlink:to="loc_us-gaap_RestructuringPlanDomain_43AB5C91775AC8C92C5953587DA68CD6_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_43AB5C91775AC8C92C5953587DA68CD6" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_F3AF996B231265C8948353587DA6DDB2" xlink:to="loc_us-gaap_RestructuringPlanDomain_43AB5C91775AC8C92C5953587DA68CD6" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_FuelforGrowthMember" xlink:label="loc_mjn_FuelforGrowthMember_D3DB6CE81B1C7B4AFEE753587DA689E9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_43AB5C91775AC8C92C5953587DA68CD6" xlink:to="loc_mjn_FuelforGrowthMember_D3DB6CE81B1C7B4AFEE753587DA689E9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_2A23D64384AC03DA933353587DA6FAC9" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_F889DC35AE60A360450653587DA6669C" xlink:to="loc_us-gaap_RestructuringReserve_2A23D64384AC03DA933353587DA6FAC9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_C24126F63313439E5D5853587DA6AB61" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_F889DC35AE60A360450653587DA6669C" xlink:to="loc_us-gaap_RestructuringCharges_C24126F63313439E5D5853587DA6AB61" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsForRestructuring" xlink:label="loc_us-gaap_PaymentsForRestructuring_4F3E22DE075D1331770553587DA67C42" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_F889DC35AE60A360450653587DA6669C" xlink:to="loc_us-gaap_PaymentsForRestructuring_4F3E22DE075D1331770553587DA67C42" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/RestructuringRestructuringTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/SegmentInformation" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/SegmentInformationDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06A0D8C768D4C45D14D4BDC64B17A0BF" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06A0D8C768D4C45D14D4BDC64B17A0BF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_9616988DA6B2AA47AECDBDC64B17CA74" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06A0D8C768D4C45D14D4BDC64B17A0BF" xlink:to="loc_us-gaap_ConsolidationItemsAxis_9616988DA6B2AA47AECDBDC64B17CA74" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConsolidationItemsAxis_9616988DA6B2AA47AECDBDC64B17CA74" xlink:to="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConsolidationItemsAxis_9616988DA6B2AA47AECDBDC64B17CA74" xlink:to="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_25FB25C439B4A55AEE23BDC64B188F17" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899" xlink:to="loc_us-gaap_OperatingSegmentsMember_25FB25C439B4A55AEE23BDC64B188F17" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_5CB3BF63EC8D68CBC679BDC64B183E5E" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationItemsDomain_FA21D3D0CE64535EE442BDC64B181899" xlink:to="loc_us-gaap_CorporateNonSegmentMember_5CB3BF63EC8D68CBC679BDC64B183E5E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_15E69604D629EBFD4FA6BDC64B18CD28" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06A0D8C768D4C45D14D4BDC64B17A0BF" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_15E69604D629EBFD4FA6BDC64B18CD28" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_15E69604D629EBFD4FA6BDC64B18CD28" xlink:to="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_15E69604D629EBFD4FA6BDC64B18CD28" xlink:to="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AsiaMember" xlink:label="loc_us-gaap_AsiaMember_9A4B69CDF050C94570C8BDC64B19E439" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E" xlink:to="loc_us-gaap_AsiaMember_9A4B69CDF050C94570C8BDC64B19E439" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LatinAmericaMember" xlink:label="loc_us-gaap_LatinAmericaMember_51BCE1C239FC8B984EE8BDC64B193ED9" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E" xlink:to="loc_us-gaap_LatinAmericaMember_51BCE1C239FC8B984EE8BDC64B193ED9" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_NorthAmericaEuropeMember" xlink:label="loc_mjn_NorthAmericaEuropeMember_B77BC1D999D10A114C3DBDC64B19D368" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_277FB2EEB3C579891295BDC64B19E40E" xlink:to="loc_mjn_NorthAmericaEuropeMember_B77BC1D999D10A114C3DBDC64B19D368" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_E9042C459B058F0599D9BDC64B193EF2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:to="loc_us-gaap_NumberOfOperatingSegments_E9042C459B058F0599D9BDC64B193EF2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_8404FC0C2C5FAF1826E4BDC64B19803B" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:to="loc_us-gaap_NumberOfReportableSegments_8404FC0C2C5FAF1826E4BDC64B19803B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet_2564C8BE5DB2502B1A83BDC64B1AC278" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_2564C8BE5DB2502B1A83BDC64B1AC278" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_E811BD803FC67FC8711EBDC64B1AF2A2" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_25D9AD708EB61E48DBC1BDC64B19743C" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_E811BD803FC67FC8711EBDC64B1AF2A2" xlink:type="arc" />
  </definitionLink>
  <definitionLink xlink:role="http://www.meadjohnson.com/role/SegmentInformationTables" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/VenezuelaMatters" xlink:type="extended" />
  <definitionLink xlink:role="http://www.meadjohnson.com/role/VenezuelaMattersVenezuelaMattersNarrativeDetails" xlink:type="extended">
    <loc xlink:href="mjn-20160331.xsd#mjn_VenezuelaCurrencyMattersLineItems" xlink:label="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:type="locator" />
    <loc xlink:href="mjn-20160331.xsd#mjn_VenezuelaCurrencyMattersTable" xlink:label="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_26449324136F2B7EDFEB549DCA6ABC5A" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_26449324136F2B7EDFEB549DCA6ABC5A" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_8AE58D9F5B63B2ECD39E549DCA6AC7A4_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_26449324136F2B7EDFEB549DCA6ABC5A" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_8AE58D9F5B63B2ECD39E549DCA6AC7A4_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_8AE58D9F5B63B2ECD39E549DCA6AC7A4" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_26449324136F2B7EDFEB549DCA6ABC5A" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_8AE58D9F5B63B2ECD39E549DCA6AC7A4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_2281B957B79F7A1569EE549DCA6AA088" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_8AE58D9F5B63B2ECD39E549DCA6AC7A4" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_2281B957B79F7A1569EE549DCA6AA088" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CurrencyAxis" xlink:label="loc_us-gaap_CurrencyAxis_E3B65B4E255A05F38C3B549DCA6A6AEA" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:to="loc_us-gaap_CurrencyAxis_E3B65B4E255A05F38C3B549DCA6A6AEA" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd#currency_AllCurrenciesDomain" xlink:label="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CurrencyAxis_E3B65B4E255A05F38C3B549DCA6A6AEA" xlink:to="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd#currency_AllCurrenciesDomain" xlink:label="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CurrencyAxis_E3B65B4E255A05F38C3B549DCA6A6AEA" xlink:to="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd#currency_VEF" xlink:label="loc_currency_VEF_0D3CCA751F0BAB14B2BC549DCA6A55E2" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15" xlink:to="loc_currency_VEF_0D3CCA751F0BAB14B2BC549DCA6A55E2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd#currency_USD" xlink:label="loc_currency_USD_513B7614E810819EF5B2549DCA6A7A0C" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_0C6587BFB47A7A385D30549DCA6AFD15" xlink:to="loc_currency_USD_513B7614E810819EF5B2549DCA6A7A0C" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ExchangeRateAxis" xlink:label="loc_mjn_ExchangeRateAxis_7B27366D762C7CA215C2549DCA6A96FA" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:to="loc_mjn_ExchangeRateAxis_7B27366D762C7CA215C2549DCA6A96FA" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ExchangeRateDomain" xlink:label="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_mjn_ExchangeRateAxis_7B27366D762C7CA215C2549DCA6A96FA" xlink:to="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA_default" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ExchangeRateDomain" xlink:label="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_mjn_ExchangeRateAxis_7B27366D762C7CA215C2549DCA6A96FA" xlink:to="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_CENCOEXMember" xlink:label="loc_mjn_CENCOEXMember_CAB5F635289DC92C652A549DCA6A9F85" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:to="loc_mjn_CENCOEXMember_CAB5F635289DC92C652A549DCA6A9F85" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_SICADIMember" xlink:label="loc_mjn_SICADIMember_84E63E230EDF54F4E327549DCA6A9FD3" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:to="loc_mjn_SICADIMember_84E63E230EDF54F4E327549DCA6A9FD3" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_SIMADIMember" xlink:label="loc_mjn_SIMADIMember_F67829EC9515980141CB549DCA6BABB0" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:to="loc_mjn_SIMADIMember_F67829EC9515980141CB549DCA6BABB0" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_DIPROMember" xlink:label="loc_mjn_DIPROMember_24A0D55563539212060E549DCA6BE889" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:to="loc_mjn_DIPROMember_24A0D55563539212060E549DCA6BE889" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_DICOMMember" xlink:label="loc_mjn_DICOMMember_FBB53398B189C1F39637549DCA6BCE4E" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_ExchangeRateDomain_45D202D91B5B9D9DA037549DCA6A8CCA" xlink:to="loc_mjn_DICOMMember_FBB53398B189C1F39637549DCA6BCE4E" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_1AA8D0A4A19B42CD954A549DCA6B6BDF" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mjn_VenezuelaCurrencyMattersTable_9DCE0BFF0D86BC379C73549DCA6A2206" xlink:to="loc_us-gaap_StatementGeographicalAxis_1AA8D0A4A19B42CD954A549DCA6B6BDF" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_890BB2C9D9E4B3BCE211549DCA6B4C41_default" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis_1AA8D0A4A19B42CD954A549DCA6B6BDF" xlink:to="loc_us-gaap_SegmentGeographicalDomain_890BB2C9D9E4B3BCE211549DCA6B4C41_default" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_890BB2C9D9E4B3BCE211549DCA6B4C41" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis_1AA8D0A4A19B42CD954A549DCA6B6BDF" xlink:to="loc_us-gaap_SegmentGeographicalDomain_890BB2C9D9E4B3BCE211549DCA6B4C41" xlink:type="arc" />
    <loc xlink:href="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd#country_VE" xlink:label="loc_country_VE_C071A85CDD09C9FF95C3549DCA6B9889" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain_890BB2C9D9E4B3BCE211549DCA6B4C41" xlink:to="loc_country_VE_C071A85CDD09C9FF95C3549DCA6B9889" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_F7FDFE3DCE3D7A876D3A549DCA6BF0CA" xlink:type="locator" />
    <definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_F7FDFE3DCE3D7A876D3A549DCA6BF0CA" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss" xlink:label="loc_mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss_9EE55B195C2CFD5C6782549DCA6B3CD0" xlink:type="locator" />
    <definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_ForeignCurrencyExchangeRateRemeasurementGainLoss_9EE55B195C2CFD5C6782549DCA6B3CD0" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_OfTotalNetSales" xlink:label="loc_mjn_OfTotalNetSales_E3AAD92303C78331F02C549DCA6B0DB1" xlink:type="locator" />
    <definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_OfTotalNetSales_E3AAD92303C78331F02C549DCA6B0DB1" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Netmonetaryassets" xlink:label="loc_mjn_Netmonetaryassets_8070C7820ED0B292CE29549DCA6B9F29" xlink:type="locator" />
    <definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_Netmonetaryassets_8070C7820ED0B292CE29549DCA6B9F29" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Netnonmonetaryassets" xlink:label="loc_mjn_Netnonmonetaryassets_B90DBC1C58EFD7D14C4B549DCA6B591F" xlink:type="locator" />
    <definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_Netnonmonetaryassets_B90DBC1C58EFD7D14C4B549DCA6B591F" xlink:type="arc" />
    <loc xlink:href="mjn-20160331.xsd#mjn_Intercompanypayable" xlink:label="loc_mjn_Intercompanypayable_AF84B89E908072E0252B549DCA6BDE4B" xlink:type="locator" />
    <definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_mjn_Intercompanypayable_AF84B89E908072E0252B549DCA6BDE4B" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_023D3C5CD1010887A73E549DCA6BF805" xlink:type="locator" />
    <definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mjn_VenezuelaCurrencyMattersLineItems_6770A3D6480FBEFCE957549DCA6B722B" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_023D3C5CD1010887A73E549DCA6BF805" xlink:type="arc" />
  </definitionLink>
</linkbase>
