cowlick vs vibrissa

cowlick

noun
  • An unruly lock or section of hair that sticks straight out from the skull or lies at an angle at odds with the rest of an individual's hair, like a whorl or vortex. 

vibrissa

noun
  • The thick hairs found inside the nostrils of humans and other mammals. 

  • Any similar feather near the mouth of some birds. 

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

How often have the words cowlick and vibrissa occurred in a corpus of books? (source: Google Ngram Viewer )