attraction to or sexual relations with members of the same sex
Compare heterosexuality
homosexuality in American English
(ˌhouməˌsekʃuːˈælɪti, esp Brit -ˌseksjuː-)
noun
sexual desire or behavior directed toward a person or persons of one's own sex
Word origin
[1890–95; homo- + sexuality]This word is first recorded in the period 1890–95. Other words that entered Englishat around the same time include: blip, cholesterol, masochism, plein-air, wirelesshomo- is a combining form appearing in loanwords from Greek, where it meant “same” (homology). On this model, homo- is used in the formation of compound words (homomorphic). Other words that use the affix homo- include: homogentisic acid, homomorphism, homotaxis, homotopy, homozygous