copulin

copulate +‎ -in

copulin (plural copulins)

1. (biochemistry) Any of a class of aliphatic acids that are found in vaginal fluids and used to signal ovulation.
   • 2022 August 7, Olivia Petter, quoting Shan Boodram, “The disgust over ‘vabbing’ is just another way to demonise women’s bodies”, in The Independent‎:

     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.

copulin

1. inflection of copular:
   1. third-person plural present subjunctive
   2. third-person plural imperative