(crystallography) The characteristic external shape of an individual crystal or crystal group.

plural of habitable zone

(idiomatic) One who is prone to routine.

plural of creature of habit

(idiomatic) To recover from or quit an addiction or habit. For example, to quit smoking, drinking, or drug addiction.

(formal, euphemistic) Addictive; likely to cause dependence or recurrence of use.

(astronomy) The zone around a star where a planet could experience temperatures like those on Earth, allowing for the possible existence of liquid water and of life.

(idiomatic) an act that has been repeated to the point where the performance of the act becomes automatic

plural of riding habit

present participle of kick the habit