bisexual (an adjective, noun, bisexuality): 1. characterized by other-sex and same-sex contacts, either concurrently or sequentially in the course of development, either in genital acts or as a long-term sexuoerotic status [from Latin, bi, two + sex]. 2. bisexuality; bisexualism:erotic pairing with partners of either genital morphology, usually serially, but possibly simultaneously. The distribution of heterophilia and homophilia in bisexuality may be 50:50 or, more likely, in unequal proportions such as 60:40 or 20:80. Bisexuality is not a paraphilia, although paraphilias may exist in association with bisexuality. Antonym, monosexual.

Dictionary of Sexology Project: Main Index