Pronunciation: (rē"lak-sā'shun), [key]
1. abatement or relief from bodily or mental work, effort, application, etc.
2. an activity or recreation that provides such relief; diversion; entertainment.
3. a loosening or slackening.
4. diminution or remission of strictness or severity.
5. Math.a numerical procedure for solving systems of equations by successive approximations of the variables.
a. the return of a system undergoing dissipation to an initial state of equilibrium after being displaced from it.
b. the approach to steady-state operation of a system that has undergone dissipation and a change in state or has been subjected to an abrupt periodic disturbance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.