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单词 polygenesis
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pol•y•gen•e•sis  (pol′ē jenə sis),USA pronunciation n. [Biol., Anthropol.]
  1. Geneticsorigin from more than one ancestral species or line.
  • poly- + -genesis 1860–65

Collins Concise English Dictionary © HarperCollins Publishers::
polygenesis /ˌpɒlɪˈdʒɛnɪsɪs/ n
  1. evolution of a polyphyletic organism or group
  2. the hypothetical descent of the different races of man from different ultimate ancestors

polygenetic /ˌpɒlɪdʒɪˈnɛtɪk/ adj
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