<?xml version="1.0" encoding="UTF-8"?>

<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="https://www.nltaxonomie.nl/kvk/role/extensible-enumerations-domeinleden" xlink:type="simple" xlink:href="kvk-cor.xsd#kvk_ExtensibleEnumerationsDomainMembers"/>
  <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="https://www.nltaxonomie.nl/kvk/role/extensible-enumerations-domeinleden">
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeDomain" xlink:label="kvk_LegalEntitySizeDomain_loc"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeMicroMember" xlink:label="kvk_LegalEntitySizeMicroMember_loc"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="kvk_LegalEntitySizeDomain_loc" xlink:to="kvk_LegalEntitySizeMicroMember_loc" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeSmallMember" xlink:label="kvk_LegalEntitySizeSmallMember_loc"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="kvk_LegalEntitySizeDomain_loc" xlink:to="kvk_LegalEntitySizeSmallMember_loc" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeMediumMember" xlink:label="kvk_LegalEntitySizeMediumMember_loc"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="kvk_LegalEntitySizeDomain_loc" xlink:to="kvk_LegalEntitySizeMediumMember_loc" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeLargeMember" xlink:label="kvk_LegalEntitySizeLargeMember_loc"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="kvk_LegalEntitySizeDomain_loc" xlink:to="kvk_LegalEntitySizeLargeMember_loc" order="4.0"/>
  </link:definitionLink>
</link:linkbase>