habituation
— Noun
– English
~ being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)
habituation
— Noun
– English
~ a general accommodation to unchanging environmental conditions
habitude
— Noun
– English
~ habitual mode of behavior
habitue
— Noun
– English
~ a regular patron; "an habitue of the racetrack"; "a bum who is a Central Park fixture"