Leptrois

Leptrois or leptivity, also known as the leptral or leptive gender system, is a gender classification that brings mathematical and linguistic understanding of genders, such as between negative and positive, negatrois and positrois.

Under leptrois, each gender has an associated spectrum from negatrois (antigender) to positrois (eugender), passing through centrois (nongender) at the center. Identities that are simultaneously negatrois and positrois on the same gender are known as nulltrois (zerogender). Neutrois is centrois on every gender.