Cissexual

Cisgender (often abbreviated to simply cis) is a term for people whose gender identity matches the sex that they were assigned at birth. Cisgender may also be defined as those who have "a gender identity or perform a gender role society considers appropriate for one's sex". It is the opposite of the term transgender.

Related terms include cissexism and cisnormativity.

German sexologist Volkmar Sigusch used the neologism cissexual (zissexuell in German) in a peer-reviewed publication. In his 1998 essay "The Neosexual Revolution", he cites his two-part 1991 article "Die Transsexuellen und unser nosomorpher Blick" ("Transsexuals and our nosomorphic view") as the origin of the term. He also used the term in the title of a 1995 article, "Transsexueller Wunsch und zissexuelle Abwehr" (or: "Transsexual desire and cissexual defense").

Cisgender has its origin in the Latin-derived prefix , meaning "on this side of", which means the opposite of , meaning "across from" or "on the other side of". This usage can be seen in the cis–trans distinction in chemistry, the cis–trans or complementation test in genetics, in Ciscaucasia (from the Russian perspective), in the ancient Roman term Cisalpine Gaul (i.e., "Gaul on this side of the Alps"), and more recently, Cisjordan, as distinguished from Transjordan. In the case of gender, cis- describes the alignment of gender identity with assigned sex.

Sociologists Kristen Schilt and Laurel Westbrook define cisgender as a label for "individuals who have a match between the gender they were assigned at birth, their bodies, and their personal identity". A number of derivatives of the terms cisgender and cissexual include cis male for "male assigned male at birth", cis female for "female assigned female at birth", analogously cis man and cis woman, and cissexism and cissexual assumption. In addition, one study published in the Journal of the International AIDS Society used the term cisnormativity, akin to sexual diversity studies' heteronormativity. A related adjective is gender-normative because, as Eli R. Green writes, "'cisgendered' is used [instead of the more popular 'gender normative'] to refer to people who do not identify with a gender diverse experience, without enforcing existence of a normative gender expression". In this way, cisgender is preferable because, unlike the term gender-normative, it does not imply that transgender identities are abnormal.

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