Definition of pheromone noun from the Oxford Advanced Learner's Dictionary

 

pheromone

 noun
noun
BrE BrE//ˈferəməʊn//
 
; NAmE NAmE//ˈferəmoʊn//
 
(biology)
 
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a substance produced by an animal as a chemical signal, often to attract another animal of the same species Word Origin 1950s: from Greek pherein ‘convey’ + hormone.
See the Oxford Advanced American Dictionary entry: pheromone