Adjective

homosexual (comparative more homosexual, superlative most homosexual)

1. (of a person or animal) Sexually attracted solely or primarily to other members of the same sex.
   • 1983: Michael W. Ross, Homosexuality and Social Sex Roles

     "Significant results indicate that Swedes would choose a more masculine partner the more homosexual they are, and that Finns would choose a more attractive partner the more homosexual they are."

2. Pertaining to homosexuality, as a relationship, an attraction, a desire, etc.
3. Intended for or used by homosexuals, as a nightclub, a bar, etc.

Homosexuality is romantic or sexual attraction or behavior among members of the same sex. As a sexual orientation, homosexuality refers to "an enduring pattern of or disposition to experience sexual, affectional, or romantic attractions primarily to" people of the same sex; "it also refers to an individual’s sense of personal and social identity based on those attractions, behaviors expressing them, and membership in a community of others who share them."

Homosexuality is one of the three main categories of sexual orientation, along with bisexuality and heterosexuality, within the heterosexual-homosexual continuum. The longstanding consensus of the behavioral and social sciences and the health and mental health professions is that homosexuality per se is an example of normal and positive variation in human sexual orientation. Currently the most common adjectives in use are lesbian for women and gay for men, though gay can refer to either men or women. The number of people who identify as gay or lesbian — and the proportion of people who have same-sex sexual experiences — are difficult for researchers to estimate reliably for a variety of reasons. In the modern West, major studies indicate a prevalence of 2% to 13% of the population. A 2006 study suggested that 20% of the population anonymously reported some homosexual feelings, although relatively few participants in the study identified themselves as homosexual. Homosexual behavior in animals is also widely encountered.

Homosexual relationships and acts have been admired as well as condemned throughout recorded history, depending on the form they took and the culture in which they occurred. Since the end of the 1800s, there has been a movement towards increased visibility, recognition and legal rights for homosexual people, including the rights to marriage and civil unions, adoption and parenting, employment, military service, and equal access to health care.