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Definitions for: Metagenesis
[n] alternation of sexual and asexual generations
Webster (1913) Definition: Met`a*gen"e*sis, n. [Pref. meta- + genesis.]
1. (Biol.) The change of form which one animal species
undergoes in a series of successively produced
individuals, extending from the one developed from the
ovum to the final perfected individual. Hence, metagenesis
involves the production of sexual individuals by nonsexual
means, either directly or through intervening sexless
generations. Opposed to monogenesis. See {Alternate
generation}, under Generation.
2. (Biol.) Alternation of sexual and asexual or gemmiparous
generations; -- in distinction from heterogamy.
Synonyms: digenesis
See Also: alternation of generations, heterogenesis, xenogenesis
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