Wiktionary
n. A pheromone released by the female silkworm moth, ''Bombyx mori'', to attract mates.
Wikipedia
Bombykol is a pheromone released by the female silkworm moth to attract mates. Discovered by Adolf Butenandt in 1959, it was the first pheromone to be characterized chemically. Minute quantities of this pheromone can be used per acre of land to confuse male insects about the location of their female partners, it can thus serve as a lure in traps to effectively remove insects without spraying crops with large amounts of pesticides. Butenandt named the substance after the moth's Latin name Bombyx mori.
In vivo it appears that bombykol is the natural ligand for a pheromone binding protein, BmorPBP, which escorts the pheromone to the pheromone receptor.
Usage examples of "bombykol".
En route, traveling the gradient of bombykol, he notes the presence of other males, heading in the same direction, all in a good mood, inclined to race for the sheer sport of it.