a response of certain mammals, including horses and cats, involving a curling back of the lips to direct scents and, specif., pheromones toward the vomeronasal organ
also flehmen response
Origin of flehmenGer, to curl the upper lip
(third-person singular simple present flehmens, present participle flehmening, simple past and past participle flehmened)
- To exhibit flaring of the lip in mammals, associated with intensive smelling.
- Flaring of the lip in mammals, associated with intensive smelling.