The description of homosexuality as an orientation also suggests, as some contemporary theorists have argued, that the boundaries between "homosexual" and "heterosexual" are not necessarily rigid. Some studies have indicated that most individuals have some erotic interest in both sexes, whether overt or not. The open expression of interest in both sexes is known as bisexuality. Transsexuals are distinguished from homosexuals by the feeling that they are really members of the opposite sex. Male and female homosexuals are now commonly known as gays and lesbians, respectively.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.