Medical Dictionary

epigenesis

noun epi·gen·e·sis \ˌep-ə-ˈjen-ə-səs\
plural epi·gen·e·ses \-ˌsēz\

Medical Definition of EPIGENESIS

1
:  development involving gradual diversification and differentiation of an initially undifferentiated entity (as a zygote or spore)—compare preformation
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