noun. ['ˈfɛrəˌmoʊn'] a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species.
1. Noun, singular or mass Synthetic pheromone sprays may also be able to stop your cat from ruining your floor. 2. Verb, base form Siamese suffering behavioural problems respond well to pheromone (synthetic hormone) plug-ins obtained from the veterinary practice.
