facial hair vs sideburns

facial hair

noun
  • Hair on the face of a human, such as the eyebrows of a man or woman or the androgenic hair (beard or moustache) of a man. 

  • Hair on the face of an animal. 

sideburns

noun
  • Facial hair reaching from the top of the head down the side of the face to the side of the chin. 

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