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[sim-yuh-ley-shuh n] /ˌsɪm yəˈleɪ ʃən/
imitation or enactment, as of something anticipated or in testing.
the act or process of pretending; feigning.
an assumption or imitation of a particular appearance or form; counterfeit; sham.
Psychiatry. a conscious attempt to feign some mental or physical disorder to escape punishment or to gain a desired objective.
the representation of the behavior or characteristics of one system through the use of another system, especially a computer program designed for the purpose.
Origin of simulation
1300-50; Middle English simulacion < Latin simulātiōn- (stem of simulātiō) a pretense. See simulate, -ion
Related forms
nonsimulation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for simulation
Contemporary Examples
Historical Examples
  • One of its most deadly weapons is fatigue, or the simulation of fatigue.

  • In line with this, a simulation of the military is a favorite device.

    The Dramatic Values in Plautus Wilton Wallace Blancke
  • The simulation of death, therefore, implies a certain knowledge of death.

  • The Italian did not overrate that craft of simulation proverbial with her country and her sex.

    Zanoni Edward Bulwer Lytton
  • "They were bad enough," he said, with a simulation of shame.

    The Folly Of Eustace Robert S. Hichens
British Dictionary definitions for simulation


the act or an instance of simulating
the assumption of a false appearance or form
a representation of a problem, situation, etc, in mathematical terms, esp using a computer
(maths, statistics, computing) the construction of a mathematical model for some process, situation, etc, in order to estimate its characteristics or solve problems about it probabilistically in terms of the model
(psychiatry) the conscious process of feigning illness in order to gain some particular end; malingering
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for simulation

mid-14c., "a false show, false profession," from Old French simulation "pretence" and directly from Latin simulationem (nominative simulatio) "an imitating, feigning, false show, hypocrisy," noun of action from past participle stem of simulare "imitate," from stem of similis "like" (see similar). Meaning "a model or mock-up for purposes of experiment or training" is from 1954.

Online Etymology Dictionary, © 2010 Douglas Harper
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simulation in Medicine

simulation sim·u·la·tion (sĭm'yə-lā'shən)

  1. Close resemblance or imitation, as of one symptom or disease by another.

  2. Assumption of a false appearance.

  3. Reproduction or representation, as of a potential situation or in experimental testing.

sim'u·late' (-lāt') v.
sim'u·la'tor (-lā'tər) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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