• noun:   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
• noun:   an occurrence of control or strength weakening

  Example: "The relaxation of requirements"

• noun:   (physics) the exponential return of a system to equilibrium after a disturbance
• noun:   (physiology) the gradual lengthening of inactive muscle or muscle fibers
• noun:   a state of refreshing tranquility
• noun:   the act of making less strict
• noun:   freedom from activity (work or strain or responsibility)

Related words...