[sim-yuh-ley-shuh n]
See more synonyms for simulation on
  1. imitation or enactment, as of something anticipated or in testing.
  2. the act or process of pretending; feigning.
  3. an assumption or imitation of a particular appearance or form; counterfeit; sham.
  4. Psychiatry. a conscious attempt to feign some mental or physical disorder to escape punishment or to gain a desired objective.
  5. 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 formsnon·sim·u·la·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for simulation

Contemporary Examples of simulation

Historical Examples of simulation

  • 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.


    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


  1. the act or an instance of simulating
  2. the assumption of a false appearance or form
  3. a representation of a problem, situation, etc, in mathematical terms, esp using a computer
  4. 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
  5. 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

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

simulation in Medicine


  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.
Related formssimu•late′ (-lāt′) v.simu•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.