Someone who is bisexual is sexually attracted to both men and women. Bisexual is also a noun. He was an active bisexual. + bisexuality bi·sexu·al·ity Lillian opened up to Frank about her bisexuality
A person with a sexual preference for both males and females Also known as: "Bi"
{s} sexually attracted to people of both genders; of both sexes; having both male and female reproductive organs (of a plant or animal)