heterosexism

From heterosex(ual) +‎ -ism; modelled on sexism.

heterosexism (countable and uncountable, plural heterosexisms)

1. The assumption made when relating to others that everyone is heterosexual.
   • 2010, Stacey Abbott, The Cult TV Book, page 245:

     One of the driving forces behind slash and femslash is the pervading heterosexism of commercial media – if television will not give us the due proportion of same-sex eroticism we are entitled to expect, then we will make it for ourselves.

2. Discrimination or prejudice in favor of heterosexuals.

• heterosexist
• heteronormative