• synonyms


[ak-luh-meyt, uh-klahy-mit]
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verb (used with or without object), ac·cli·mat·ed, ac·cli·mat·ing.
  1. to accustom or become accustomed to a new climate or environment; adapt.
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Origin of acclimate

From the French word acclimater, dating back to 1785–95. See ac-, climate
Related formsac·cli·mat·a·ble [uh-klahy-mi-tuh-buh l] /əˈklaɪ mɪ tə bəl/, adjectiveac·cli·ma·tion [ak-luh-mey-shuh n] /ˌæk ləˈmeɪ ʃən/, nounre·ac·cli·mate, verb, re·ac·cli·mat·ed, re·ac·cli·mat·ing.un·ac·cli·mat·ed, adjective
Can be confusedacclamation acclimation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for acclimation

Historical Examples

  • It was, I suppose, the acclimation to which we were being subjected.

    Tenting on the Plains

    Elizabeth B. Custer

  • We decided it's just a part of acclimation to—we call this planet Lucifer.

    West Of The Sun

    Edgar Pangborn

  • There is nothing to hope for, as regards malaria, in acclimation.

  • This gradual adaptation to circumstances by an accommodating power is termed, in philosophical language, acclimation.

    A Treatise on Sheep:

    Ambrose Blacklock

  • A few days, therefore, when the last touch of acclimation shall have taken its leave, and "I'm over the border and awa'."

Word Origin and History for acclimation


1826, noun of action from acclimate.

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1792, from French acclimater, verb formed from à "to" (see ad-) + climat (see climate). Related: Acclimated; acclimating. The extended form acclimatize is now more common.

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Online Etymology Dictionary, © 2010 Douglas Harper

acclimation in Medicine


  1. The process of becoming adjusted to a new environment or situation.
  2. Acclimatization.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.