poly·gen·ic /ˌpɑlɪˈʤɪnɪk, ˈʤɛnɪk/ 形容詞
  微效基因的,多基因的
  Pol·y·gen·ic a. Biol. Of or relating to polygeny; polygenetic.
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  polygenic
       adj : of or relating to an inheritable character that is
             controlled by several genes at once; of or related to
             or determined by polygenes