noun. an exterior chemical messenger which impacts and alters the behavior of other members within the same species. Commonly referred to as ectohormone.

PHEROMONE: "The science of pheromones as they pertain to human attraction is really a fascinating topic."
Cite this page: N., Pam M.S., "PHEROMONE," in, April 7, 2013, (accessed November 25, 2020).