# heterosexism

> English word · Noun

## Definitions
1. The assumption made when relating to others that everyone is heterosexual.
2. Discrimination or prejudice in favor of heterosexuals.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/heterosexism