POLYGENESIS Meaning of POLYGENESIS in English [ ˌpɒlɪ'dʒɛnɪsɪs ](also polygeny pə'lɪdʒ(ə)ni ) ■ noun origination from a number of independent sources or places.Derivativespolygenetic adjective Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004