noun🔗ShareA chemical secreted by an animal, especially an insect, that affects the development or behavior of other members of the same species, functioning often as a means of attracting a member of the opposite sex."The male moth released a pheromone that quickly attracted female moths from miles away. "animalinsectbiologybiochemistryphysiologyorganismnaturechemistrysubstancesciencesexcommunicationChat with AIVocabulary GamePractice Reading