Relaxation

The act or process of relaxing, or the state of being relaxed; as, relaxation of the muscles; relaxation of a law.

Remission from attention and effort; indulgence in recreation, diversion, or amusement.

(physiology) the gradual lengthening of inactive muscle or muscle fibers

a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount

(physics) the exponential return of a system to equilibrium after a disturbance

a feeling of refreshing tranquility and an absence of tension or worry; "the easiness we feel when sleeping"

the act of making less strict