polyvalent vs chemistry

polyvalent is not a noun while chemistry is a noun.

Word	Noun	Adjective	Verb	Adverb
polyvalent	No	Yes	No	No
chemistry	Yes	No	No	No

polyvalent (noun)	chemistry (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
	the way two individuals relate to each other
	the chemical composition and properties of a substance or object

polyvalent (adjective)	chemistry (adjective)
having more than one valence, or having a valence of 3 or higher
containing several antibodies each capable of counteracting a specific antigen