vibrissa

Any of the tactile whiskers on the nose of an animal such as a cat.

There are also long hairs inside each ear and sometimes on its tip, and about a dozen very long and strong hairs—the whiskers or vibrissæ— are placed on each upper lip.

Any similar feather near the mouth of some birds.

A thick hair found inside the nostrils of humans and other mammals.

The vibrissae are coarse hairs whose follicles are located just within the nasal meatus. […] Vibrissae are present in most mammals, but their innervation and role in sensory function appears to be less pronounced in humans.