from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Discrimination or prejudice against lesbians or gay men by heterosexual people.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The assumption made when relating to others that everyone is heterosexual.
- n. Discrimination against homosexuals, bisexuals and asexuals in favor of heterosexuals.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. discrimination in favor of heterosexual and against homosexual people
From heterosex(ual) and -ism; modelled on sexism. (Wiktionary)