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flehmen
[ fley-muhn ]
noun
- Also called fleh·men re·sponse [fley, -m, uh, n ri-spons],. a behavioral response of many mammals, especially deer and other artiodactyls, felines, and horses, consisting of raising the head and curling the upper lip to aid the sense of smell by increasing the flow of air through the nostrils and exposing the auxiliary olfactory organs: often a response to the detection of pheromones. lip curl ( def 1b ).
verb (used without object)
- (of deer, horses, and many other mammals) to raise the head and curl the upper lip to aid the sense of smell by increasing the flow of air through the nostrils and exposing the auxiliary olfactory organs.
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Word History and Origins
Origin of flehmen1
From German Flehmen, noun use of infinitive: “(of a domestic ungulate) to curl the lip”; compare dialectal (Upper Saxony) flemmen “to look spiteful”; further relations unclear
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