'Polygenic' definitions:

Definition of 'polygenic'

From: WordNet
adjective
Of or relating to an inheritable character that is controlled by several genes at once; of or related to or determined by polygenes

Definition of 'Polygenic'

From: GCIDE
  • Polygenic \Pol`y*gen"ic\ (-j[e^]n"[i^]k), a. (Biol.) Of or relating to polygeny; polygenetic. [1913 Webster]