Definition of flehmen
: a mammalian behavior (as of horses or cats) in which the animal inhales with the mouth open and upper lip curled to facilitate exposure of the vomeronasal organ to a scent or pheromone
Origin of flehmen
German, from flehmen (of animals) to curl the upper lip
First Known Use: 1976
Learn More about flehmen
Britannica.com: Encyclopedia article about "flehmen"
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