epigenesis


epi·gen·e·sis

noun \ˌe-pə-ˈje-nə-səs\

Definition of EPIGENESIS

1
:  development of a plant or animal from an egg or spore through a series of processes in which unorganized cell masses differentiate into organs and organ systems; also :  the theory that plant and animal development proceeds in this way — compare preformation 2
2
:  change in the mineral character of a rock owing to outside influences

Origin of EPIGENESIS

New Latin
First Known Use: 1798

epi·gen·e·sis

noun \ˌep-ə-ˈjen-ə-səs\   (Medical Dictionary)
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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