carboxylate vs chemical science

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

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

carboxylate (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

carboxylate (verb)	chemical science (verb)
treat (a chemical compound) with carboxyl or carboxylic acid