relaxation

[ree-lak-sey-shuhn]
noun
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.
Mathematics. a numerical procedure for solving systems of equations by successive approximations of the variables.
6.
Physics.
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.

Origin:
1375–1425; late Middle English < Latin relaxātiōn- (stem of relaxātiō), equivalent to relaxāt(us) (past participle of relaxāre to relax; see -ate1) + -iōn- -ion

nonrelaxation, noun


2. fun, amusement, pleasure.
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World English Dictionary
relaxation (ˌriːlækˈseɪʃən)
 
n
1.  rest or refreshment, as after work or effort; recreation
2.  a form of rest or recreation: his relaxation is cricket
3.  a partial lessening of a punishment, duty, etc
4.  the act of relaxing or state of being relaxed
5.  physics the return of a system to equilibrium after a displacement from this state
6.  maths a method by which errors resulting from an approximation are reduced by using new approximations

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

relaxation re·lax·a·tion (rē'lāk-sā'shən)
n.

  1. The act of relaxing or the state of being relaxed.

  2. Refreshment of body or mind.

  3. A loosening or slackening.

  4. The lengthening of inactive muscle or muscle fibers.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The casual comfort of the two chairs seems to invite relaxation and intimate
  conversation.
Relaxation is easy when your garden has all the ambience of a desert resort.
Presidents need relaxation, whether playing golf or clearing brush.
Its long coasts offer many different choices for a time of sun and relaxation,
  each one with its own local culture and character.
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