relaxation -
an occurrence of control or strength weakening; "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind"
relaxation -
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
alleviation,
easement,
easing,
relief (law) the privilege of using something that is not your own (as using another's land as a right of way to your own land)
relaxation -
a feeling of refreshing tranquility and an absence of tension or worry; "the easiness we feel when sleeping"