molar vs molecular

molar is a noun but molecular is not a noun.

Word	Noun	Adjective	Verb	Adverb
molar	Yes	Yes	No	No
molecular	No	Yes	No	No

molar (noun)	molecular (noun)
grinding tooth with a broad crown; located behind the premolars

molar (adjective)	molecular (adjective)
pertaining to large units of behavior	relating to simple or elementary organization
containing one mole of a substance	relating to or produced by or consisting of molecules
designating a solution containing one mole of solute per liter of solution
of or pertaining to the grinding teeth in the back of a mammal's mouth