maxilla vs molar

maxilla

noun
  • Either of the two bones that lie with one on each side of the upper jaw lateral to the premaxilla and that in higher vertebrates bear most of the teeth. 

  • An upper jaw especially of humans and other mammals in which the bony elements are closely fused. 

  • One of the first or second pair of mouthparts posterior to the mandibles in many arthropods that are used for tasting and manipulating food. 

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. 

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