definition of
relaxation

[1] #1 relaxation n. (physiology) the gradual lengthening of inactive muscle or muscle fibers. wn

[2] #2 relaxation n. [relaxation behavior] (physics) the exponential return of a system to equilibrium after a disturbance. wn

[3] #3 relaxation n. [easiness] a feeling of refreshing tranquility and an absence of tension or worry; "the easiness we feel when sleeping". wn

[4] #4 relaxation n. [loosening, slackening] an occurrence of control or strength weakening; "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind". wn

[5] #5 relaxation n. [rest, ease, repose] freedom from activity (work or strain or responsibility); "took his repose by the swimming pool". wn