bicuspid vs cuspid

bicuspid

noun
  • A tooth with two cusps; a premolar tooth. 

adj
  • Having two points or prominences; ending in two points; said of teeth, leaves, fruit, etc. 

cuspid

noun
  • A tooth with a single cusp; a canine tooth. 

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