molar vs psychological science

molar and psychological science both are nouns.

Word	Noun	Adjective	Verb	Adverb
molar	Yes	Yes	No	No
psychological science	Yes	No	No	No

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

molar (adjective)	psychological science (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