<?xml version="1.0" encoding="UTF-8"?>
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:chf="http://www.cavanalhillfunds.com/20111231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/Series" xlink:type="simple" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#SeriesOnly"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/Class" xlink:type="simple" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ClassOnly"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasure" xlink:type="simple" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#PerformanceMeasureOnly"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/Series">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008941Member" xlink:label="chf_S000008941Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008941Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008943Member" xlink:label="chf_S000008943Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008943Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008946Member" xlink:label="chf_S000008946Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008946Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008938Member" xlink:label="chf_S000008938Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008938Member" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008948Member" xlink:label="chf_S000008948Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008948Member" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008942Member" xlink:label="chf_S000008942Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008942Member" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008949Member" xlink:label="chf_S000008949Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008949Member" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008937Member" xlink:label="chf_S000008937Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008937Member" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000008939Member" xlink:label="chf_S000008939Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000008939Member" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_S000033655Member" xlink:label="chf_S000033655Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="chf_S000033655Member" use="optional" order="10.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/Class">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain" xlink:label="rr_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041646Member" xlink:label="chf_C000041646Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041646Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041647Member" xlink:label="chf_C000041647Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041647Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041645Member" xlink:label="chf_C000041645Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041645Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041648Member" xlink:label="chf_C000041648Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041648Member" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000073541Member" xlink:label="chf_C000073541Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000073541Member" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041650Member" xlink:label="chf_C000041650Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041650Member" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041649Member" xlink:label="chf_C000041649Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041649Member" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041652Member" xlink:label="chf_C000041652Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041652Member" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000073542Member" xlink:label="chf_C000073542Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000073542Member" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041651Member" xlink:label="chf_C000041651Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041651Member" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041653Member" xlink:label="chf_C000041653Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041653Member" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041654Member" xlink:label="chf_C000041654Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041654Member" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041656Member" xlink:label="chf_C000041656Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041656Member" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000041655Member" xlink:label="chf_C000041655Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000041655Member" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000073543Member" xlink:label="chf_C000073543Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000073543Member" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102307Member" xlink:label="chf_C000102307Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102307Member" use="optional" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024285Member" xlink:label="chf_C000024285Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024285Member" use="optional" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024286Member" xlink:label="chf_C000024286Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024286Member" use="optional" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102310Member" xlink:label="chf_C000102310Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102310Member" use="optional" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024299Member" xlink:label="chf_C000024299Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024299Member" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024300Member" xlink:label="chf_C000024300Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024300Member" use="optional" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102309Member" xlink:label="chf_C000102309Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102309Member" use="optional" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024292Member" xlink:label="chf_C000024292Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024292Member" use="optional" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024293Member" xlink:label="chf_C000024293Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024293Member" use="optional" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102311Member" xlink:label="chf_C000102311Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102311Member" use="optional" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024301Member" xlink:label="chf_C000024301Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024301Member" use="optional" order="26.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024302Member" xlink:label="chf_C000024302Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024302Member" use="optional" order="27.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102306Member" xlink:label="chf_C000102306Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102306Member" use="optional" order="28.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024283Member" xlink:label="chf_C000024283Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024283Member" use="optional" order="29.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024284Member" xlink:label="chf_C000024284Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024284Member" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000102308Member" xlink:label="chf_C000102308Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000102308Member" use="optional" order="31.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024287Member" xlink:label="chf_C000024287Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024287Member" use="optional" order="32.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000024288Member" xlink:label="chf_C000024288Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000024288Member" use="optional" order="33.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000103431Member" xlink:label="chf_C000103431Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000103431Member" use="optional" order="34.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000103432Member" xlink:label="chf_C000103432Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000103432Member" use="optional" order="35.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_C000103433Member" xlink:label="chf_C000103433Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_ShareClassDomain" xlink:to="chf_C000103433Member" use="optional" order="36.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/PerformanceMeasure">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain" xlink:label="rr_PerformanceMeasureDomain"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_ReturnBeforeTaxesMember" xlink:label="chf_ReturnBeforeTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_ReturnBeforeTaxesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_BofAMerrillLynch15YearUSCorporateGovernmentIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" xlink:label="chf_BofAMerrillLynch15YearUSCorporateGovernmentIndexReflectsNoDeductionForExpensesFeesOrTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_BofAMerrillLynch15YearUSCorporateGovernmentIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_BarclaysCapitalUSIntermediateAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" xlink:label="chf_BarclaysCapitalUSIntermediateAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_BarclaysCapitalUSIntermediateAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_BarclaysCapitalUSAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" xlink:label="chf_BarclaysCapitalUSAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_BarclaysCapitalUSAggregateBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_BarclaysCapitalUSMunicipalBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" xlink:label="chf_BarclaysCapitalUSMunicipalBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_BarclaysCapitalUSMunicipalBondIndexReflectsNoDeductionForExpensesFeesOrTaxesMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="chf-20111231.xsd#chf_Russell1000IndexReflectsNoDeductionForExpensesFeesOrTaxesMember" xlink:label="chf_Russell1000IndexReflectsNoDeductionForExpensesFeesOrTaxesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="rr_PerformanceMeasureDomain" xlink:to="chf_Russell1000IndexReflectsNoDeductionForExpensesFeesOrTaxesMember" use="optional" order="6.0"/>
  </link:definitionLink>
</link:linkbase>
