First Known Use: 1875
Dictionary
ontogenesis
noun on·to·gen·e·sis \ˌän-tə-ˈje-nə-səs\
Medical Dictionary
ontogenesis
noun on·to·gen·e·sis \ˌänt-ə-ˈjen-ə-səs\
plural on·to·gen·e·ses \-ˌsēz\
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