Acquired behaviour pattern (5)

I believe the answer is:
habit
(Other definitions for habit that I've seen before include "Custom - costume" , "Custom, nun's wear" , "Addiction to a drug" , "Acquired pattern of behaviour" , "nun gets into" .)
I believe the answer is:
habit
(Other definitions for habit that I've seen before include "Custom - costume" , "Custom, nun's wear" , "Addiction to a drug" , "Acquired pattern of behaviour" , "nun gets into" .)