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1. Of, relating to, or determined by polygenes: polygenic inheritance.
a. Of or relating to polygenesis; polygenetic.
b. Of or relating to polygenism.
(Genetics) of, relating to, or controlled by polygenes: polygenic inheritance.
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|Adj.||1.||polygenic - of or relating to an inheritable character that is controlled by several genes at once; of or related to or determined by polygenes|