chemical science vs multivalent

chemical science is a noun but multivalent is not a noun.

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

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

chemical science (adjective)	multivalent (adjective)
	used of the association of three or more homologous chromosomes during the first division of meiosis
	having more than one valence, or having a valence of 3 or higher
	having many values, meanings, or appeals