Wiktionary
copulin
n. (context biochemistry English) Any of a class of aliphatic acids that are found in vaginal fluids and used to signal ovulation.
Usage examples of "copulin".
As f at back as the 1960’s two chemicals, copulin and androsterone, were found to be sexual signals in monkeys, and to some extent in human beings.
As far back as the 1960’s two chemicals, copulin and androsterone, were found to be sexual signals in monkeys, and to some extent in human beings.