Definitions for: Kenogenesis

[n] introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution)

Webster (1913) Definition: Ken`o*gen"e*sis, n. [Gr. ? new + E. genesis.]
(Biol.)
Modified evolution, in which nonprimitive characters make
their appearance in consequence of a secondary adaptation of
the embryo to the peculiar conditions of its environment; --
distinguished from palingenesis. [Written also
c[ae]nogenesis.]

Synonyms: caenogenesis, cainogenesis, cenogenesis, kainogenesis

Antonyms: palingenesis, recapitulation

See Also: development, growing, growth, maturation, ontogenesis, ontogeny

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