Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
Wiktionary
a. 1 restricted to members of a single sex. 2 Of, relating to, or between homosexual men or women. alt. 1 restricted to members of a single sex. 2 Of, relating to, or between homosexual men or women.
Usage examples of "same-sex".
Unlike the abortion debate, this is one battle conservatives are losing, despite all the same-sex bans passed in November 2004.
It’s like those foul same-sex lovers who refuse to propagate in accordance with Potipur’s will, like those rotten celibates the Laughers keep rooting out.
Regina doubted that Barbie had much interest in anything physical from anyone, and in that regard was probably similar to Regina's mother, who for as long as Regina could remember had been far more interested in collectibles, such as cast-iron banks, old coffee and tobacco cans, and trivets, than in wild, erotic same-sex or opposite-sex or even self-sex.
Same-sex marriages, group marriages, you could even marry yourself—.
After all, we might be lesbians, and that’s perfectly fine, because that other same-sex couple, Pat and Lesley, they certainly were.
Subject is a sixty-two-year-old male, professional, high-end education, successful, financially solvent, bisexual, with long-term same-sex marriage.