molar vs molecular

molar

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. 

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

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

molecular

adj
  • Relating to a simple or basic structure or organization. 

  • Relating to, or consisting of, or produced by molecules. 

  • (of an element) Combined with itself and with no other element; elemental. 

  • Relating to molecular gastronomy. 

noun
  • Any compound having a specified (range of) molecular weight(s) 

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