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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 against homosexuals, bisexuals and asexuals in favor of heterosexuals.

Related terms[edit]