jaw vs oral cavity

jaw

noun
  • One of the bones, usually bearing teeth, which form the framework of the mouth. 

  • Anything resembling the jaw of an animal in form or action; especially plural, the mouth or way of entrance. 

  • Axle guard. 

  • The curved part of the cushion marking the entry to the pocket. 

  • The part of the face below the mouth. 

  • A notch or opening. 

  • One of a pair of opposing parts which are movable towards or from each other, for grasping or crushing anything between them. 

  • A notched or forked part, adapted for holding an object in place. 

  • The inner end of a boom or gaff, hollowed in a half circle so as to move freely on a mast. 

verb
  • To talk; to converse. 

  • To scold; to clamor. 

  • To assail or abuse by scolding. 

  • (of a ball) To stick in the jaws of a pocket. 

oral cavity

noun
  • The cavity of the mouth, especially the part of the mouth behind the gums and teeth that is bounded above by the hard and soft palates and below by the tongue and by the mucous membrane connecting it with the inner part of the mandible. 

  • The hollow on the lower surface of the head from which the proboscis protrudes. 

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