Definition of polygenic in English:

polygenic

adjective

Genetics
  • Relating to or determined by polygenes:

    ‘the theory of polygenic inheritance’
    • ‘In contrast, acoustical communication has been suggested to have a polygenic mode of inheritance.’
    • ‘In the Belgian tervuren and sheepdog, epilepsy is highly heritable with a polygenic mode of inheritance, though apparently influenced by a single autosomal recessive locus of large effect.’
    • ‘Monogenic and polygenic inheritance of adult resistance under controlled and field conditions has been reported in the literature.’
    • ‘The technique is intended to integrate Mendelian transmission genetics, allelic frequency, and penetrance with the patterns of covariance expected in polygenic inheritance.’
    • ‘The most common cause of genetic disorders is multifactorial or polygenic inheritance.’

Origin

1940s: from Greek polugenēs of many kinds + -ic.

Pronunciation:

polygenic

/ˌpɒlɪˈdʒɛnɪk/