noun
flehmen; flehmen response
A specialized zoological term for the lip-curling behavior seen in many mammals when investigating scents, especially pheromones. Used in scientific and animal-behavior contexts.
馬がフレーメンをするのは、においを詳しく調べているときだ。
Horses exhibit the flehmen response when they are closely examining a scent.
動物園でトラのフレーメンが見られた。
We observed the tiger's flehmen response at the zoo.