depinisyon kahulugan
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doc Definition of kenogenesis
    English to English
    noun
  • introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution)
  • source: WordNet 3.0
  • 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.
  • source: Webster 1913
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