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kainogenesis

英[kaɪnə'dʒenɪsɪs] 美[kaɪnə'dʒenɪsɪs]
  • n. [生物]新性发生

详细释义

Noun:
  1. 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)

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