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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. 2015.
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Examples from the Web for simulation
Contemporary Examples
Historical Examples
  • All physiologists know that hysterical persons have a tendency to falsehood and simulation.

    Mysterious Psychic Forces Camille Flammarion
  • The simulation of death, therefore, implies a certain knowledge of death.

  • The simulation of sleep had been indulged in simply to escape the necessity of talking.

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

    Zanoni Edward Bulwer Lytton
  • My visitor seemed to recollect her fright—or the necessity for simulation.

    Tales of Chinatown Sax Rohmer
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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simulation in Technology
simulation, system
Attempting to predict aspects of the behaviour of some system by creating an approximate (mathematical) model of it. This can be done by physical modelling, by writing a special-purpose computer program or using a more general simulation package, probably still aimed at a particular kind of simulation (e.g. structural engineering, fluid flow). Typical examples are aircraft flight simlators or electronic circuit simulators. A great many simulation languages exist, e.g. Simula.
See also emulation, Markov chain.
Usenet newsgroup: news:comp.simulation.
The Free On-line Dictionary of Computing, © Denis Howe 2010
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