molar vs psychology

molar and psychology both are nouns.

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

molar (noun)	psychology (noun)
grinding tooth with a broad crown; located behind the premolars	the science of mental life

molar (adjective)	psychology (adjective)
pertaining to large units of behavior
containing one mole of a substance
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