habituate vs habituation

habituate is not a noun while habituation is a noun.

Word	Noun	Adjective	Verb	Adverb
habituate	No	No	Yes	No
habituation	Yes	No	No	No

habituate (noun)	habituation (noun)
	a general accommodation to unchanging environmental conditions
	being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)

habituate (verb)	habituation (verb)
make psychologically or physically used (to something)
take or consume (regularly or habitually)