vibrissaePronunciation: /vʌɪˈbrɪsiː/Definition of vibrissae noun Zoology long stiff hairs growing around the mouth or elsewhere on the face of many mammals, used as organs of touch; whiskers. Ornithology coarse bristle-like feathers growing around the gape of certain insectivorous birds that catch insects in flight. Origin: late 17th century: from Latin, literally 'nostril hairs'vibrissae in other Oxford dictionaries Definition of vibrissae in the US English dictionary