ho·mo·sexual I. \|hōmə, -mō+\adjective Etymology:hom- + sexual 1.: of, relating to, or being of the same sex < homosexual twins > 2. a.: of, relating to, or exhibiting homosexuality < homosexual tendency > < homosexual act > — opposed to heterosexual b.: involving, characterized by, or based on homosexuality < a child's homosexual phase > II. noun (-s) : one who is inclined toward or practices homosexuality