Copulin
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Any of a class of aliphatic acids that are found in vaginal fluids and used to signal ovulation.
"The practice was also given as a handy tip for single women in sexologist Shan Boodram’s 2019 book, The Game of Desire. “If copulins [chemicals secreted by the vagina]^([sic]) are used as perfume, then it will attract anyone traditionally attracted to women with vulvas,” Boodram wrote."
Example
More examples"The practice was also given as a handy tip for single women in sexologist Shan Boodram’s 2019 book, The Game of Desire. “If copulins [chemicals secreted by the vagina]^([sic]) are used as perfume, then it will attract anyone traditionally attracted to women with vulvas,” Boodram wrote."
Etymology
From copulate + -in.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.