chemical science vs osmosis

chemical science and osmosis both are nouns.

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

chemical science (noun)	osmosis (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions	(biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal