copuline

cop·u·line

(kop'yū-līn)
Any of several pheromones that occur in vaginal secretions; men who were exposed to copulines rated women as more attractive, especially those women considered less attractive by controls tested with water. Copulines from ovulatory (but not menstrual or premenstrual) women caused a rise in salivary testosterone in men.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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