1. a facial grimace made by animals (especially cats and some ungulates) in which the upper lip is curled back, typically in response to detecting scents
Usage: also called the Flehmen response; common in animal behavior contexts

1. to make a flehming grimace; to curl back the upper lip in response to a scent
Usage: used of animals, especially cats and ungulates

Examples

• The cat was flehming when it caught an unfamiliar scent in the air.
• Horses often engage in flehming to better analyze pheromones.
• The lion's flehming exposed its teeth as it investigated the territory.
• Flehming is a natural behavior that helps animals process chemical signals.
• When the cat started flehming, we knew it had detected something interesting.