a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species
例句
用作名词 (n.)
The stronger the pheromone signal, the more other ants followed that route. 信息素的信号越强，循迹而来的蚂蚁就越多。
Upon contact, the pheromone is sent to sex-specific regions in the female's brain. 当接触的时候，信息素被传送到雌鼠大脑里的性别区域。
美
['ferəmoʊn]
