reverse osmosis vs chemistry

reverse osmosis and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
reverse osmosis	Yes	No	No	No
chemistry	Yes	No	No	No

reverse osmosis (noun)	chemistry (noun)
(chemistry) a method of producing pure water; a solvent passes through a semipermeable membrane in a direction opposite to that for natural osmosis when it is subjected to a hydrostatic pressure greater than the osmotic pressure	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