aromatic vs chemical science

aromatic is not a noun while chemical science is a noun.

Word	Noun	Adjective	Verb	Adverb
aromatic	No	Yes	No	No
chemical science	Yes	No	No	No

aromatic (noun)	chemical science (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

aromatic (adjective)	chemical science (adjective)
(chemistry) of or relating to or containing one or more benzene rings
having a strong pleasant odor