- sexual desire or behavior directed toward people of more than one gender, sometimes understood to include attraction to one's own sex or gender and at least one other sex or gender.
- the state of being sexually attracted to people of more than one gender, sometimes understood to include attraction to one's own sex or gender and at least one other sex or gender.
- Biology.
- (of a species) having two distinct sexes:In these plants, bisexuality recently evolved from an ancestral unisexual condition.
- having both male and female sexual organs present in one individual:Bisexuality occurs in about 50% of the red sea bream's juvenile population.
