fractionate vs chemical science

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

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

fractionate (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

fractionate (verb)	chemical science (verb)
obtain by a fractional process
separate into constituents or fractions containing concentrated constituents