people. The adjectival form biphobic describes things or qualities related to biphobia, and the less-common noun biphobe is a label for people thought to harbor biphobia.

The term biphobia was first introduced in 1992 by researcher Kathleen Bennett to mean "prejudice against bisexuality" and "the denigration of bisexuality as a life-choice." It has subsequently been defined as "any portrayal or discourse denigrating or criticizing men or women on the sole ground of their belonging to this [bisexual]