beard vs buccal cavity

beard

noun
  • The appendages to the jaw in some cetaceans, and to the mouth or jaws of some fishes. 

  • The cluster of small feathers at the base of the beak in some birds. 

  • In insects, the hairs of the labial palpi of moths and butterflies. 

  • The gills of some bivalves, such as the oyster. 

  • Long or stiff hairs on a plant; the awn. 

  • The curved underside of an axehead, extending from the lower end of the cutting edge to the axehandle. 

  • A barb or sharp point of an arrow or other instrument, projecting backward to prevent the head from being easily drawn out. 

  • That part of the underside of a horse's lower jaw which is above the chin, and bears the curb of a bridle. 

  • A fake customer or companion, especially a woman who accompanies a gay man, or a man who accompanies a lesbian, in order to give the impression that the person being accompanied is heterosexual. 

  • The byssus of certain shellfish. 

  • Facial hair on the chin, cheeks, jaw and neck. 

verb
  • To boldly and bravely oppose or confront, often to the chagrin of the one being bearded. 

  • To take by the beard; to seize, pluck, or pull the beard of (a man), in anger or contempt. 

  • Of a gay man or woman: to accompany a gay person of the opposite sex in order to give the impression that they are heterosexual. 

  • Of bees, to accumulate together in a beard-like shape. 

  • To deprive (an oyster or similar shellfish) of the gills. 

buccal cavity

noun
  • The oral cavity, bound by the cheeks of the face, the palate, and the flesh of the mandible, opening onto the mouth and the fauces, and containing the teeth, tongue, gums, and other structures. 

  • The first part of the stomodaeum, lying just within the mouth; its dilator muscles arising on the clypeus, and inserted before the frontal ganglion and its connectives. 

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