Queer

Queer is usually used as an umbrella term for gender identities or sexual orientations that do not correspond to society’s heteronormative norms. This therefore includes all categories other than male, female or heterosexual. LGBTQIA* is also used as a synonym. For a long time, queer was often used in a derogatory fashion, in particular with reference to gay men. Nowadays, it has not only been embraced by the queer community, but is also used to refer to a theoretical approach and an interdisciplinary field of study in academia: Queer studies.

Source: Queer Lexikon