inhibit vs inhibitor

inhibit is not a noun while inhibitor is a noun.

Word	Noun	Adjective	Verb	Adverb
inhibit	No	No	Yes	No
inhibitor	Yes	No	No	No

inhibit (noun)	inhibitor (noun)
	a substance that retards or stops an activity

inhibit (verb)	inhibitor (verb)
prohibit, forbid, or prevent from doing something
make (someone) self-conscious and as a result unable to act naturally
consciously restrain from showing; of emotions, desires, impulses, or behavior
limit, block, or decrease the action or function of