hydrogenate vs hydrogen

hydrogenate is not a noun while hydrogen is a noun.

Word	Noun	Adjective	Verb	Adverb
hydrogenate	No	No	Yes	No
hydrogen	Yes	No	No	No

hydrogenate (noun)	hydrogen (noun)
	a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

hydrogenate (verb)	hydrogen (verb)
combine or treat with or expose to hydrogen; add hydrogen to the molecule of (an unsaturated organic compound)