molar vs tooth

molar

noun
  • A back tooth having a broad surface used for grinding one's food. 

  • A unit of concentration equal to one mole per litre. 

adj
  • Of, relating to, or being a solution containing one mole of solute per litre of solution. 

  • Of or relating to a complete body of matter as distinct from its molecular or atomic constituents. 

  • Of or relating to the molar teeth, or to grinding. 

tooth

noun
  • A projection or point in other parts of the body resembling the tooth of a vertebrate animal. 

  • An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb. 

  • A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating. 

  • The rough surface of some kinds of cel or other films that allows better adhesion of artwork. 

  • A pointed projection from the margin of a leaf. 

  • A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain. 

  • A sharp projection on the blade of a saw or similar implement. 

  • Liking, fondness (compare toothsome). 

verb
  • To provide or furnish with teeth. 

  • To indent; to jag. 

  • To lock into each other, like gear wheels. 

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