• (n.) Sexual generation; amphigony.
Am`phi·gen'e·sis noun [ Greek ... + ... generation.] (Biol.) Sexual generation; amphigony. 
amphigenesis, amphigenetic 1. In psychiatry, a form of sexual inversion in which a person, predominantly homosexual, is able also to have sexual relations with members of the opposite sex. 2. Sexual development; the fusion of two dissimilar gametes.