reinforcer vs stimulation

reinforcer and stimulation both are nouns.

Word	Noun	Adjective	Verb	Adverb
reinforcer	Yes	No	No	No
stimulation	Yes	No	No	No

As nouns, stimulation is a hypernym of reinforcer; that is, stimulation is a word with a broader meaning than reinforcer:

reinforcer: (psychology) a stimulus that strengthens or weakens the behavior that produced it
stimulation: any stimulating information or event; acts to arouse action

Other hypernyms of reinforcer include input, stimulant, stimulus.

reinforcer (noun)	stimulation (noun)
(psychology) a stimulus that strengthens or weakens the behavior that produced it	the act of arousing an organism to action
	mutual sexual fondling prior to sexual intercourse
	any stimulating information or event; acts to arouse action
	(physiology) the effect of a stimulus (on nerves or organs etc.)