chemical science vs clathrate

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

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

chemical science (noun)	clathrate (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)	clathrate (adjective)
	designating or relating to a compound in which one component is physically enclosed within the crystal structure of another
	having a latticelike structure pierced with holes or windows