karyorrhexis
noun
kar·y·or·rhex·is
| \ ˌkar-ē-ȯr-ˈek-səs
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plural karyorrhexes\ -ˌsēz
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Medical Definition of karyorrhexis
: a degenerative cellular process involving fragmentation of the nucleus and the breakup of the chromatin into unstructured granules — compare karyolysis