acclimation

noun

ac·​cli·​ma·​tion ˌa-klə-ˈmā-shən How to pronounce acclimation (audio)
-ˌklī-
Synonyms of acclimationnext
: the process or result of acclimating
especially : physiological adjustment by an organism to environmental change

Synonyms of acclimation

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Examples of acclimation in a Sentence

a period of acclimation to the region's rising temperatures
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That strange acclimation extends to the human characters, whose emotional histories are gradually filled in. — Alison Foreman, IndieWire, 9 Oct. 2026 But a Shedd news release summarizing the necropsy doesn’t establish whether or not transport, acclimation to a new environment, or the veterinary and husbandry care provided at the Shedd contributed to their deaths. — Chicago Tribune, 4 Oct. 2026 Heat acclimation, pacing, and hydration are participant responsibility. — Vibhu Krishna, STAT, 2 Oct. 2026 Like the original series, A Different World on Netflix charts Deborah’s acclimation to college life, her dreams and her relationships. — Madeleine Janz, PEOPLE, 31 Aug. 2026 See All Example Sentences for acclimation

Word History

Etymology

acclim(ate) + -ation

First Known Use

1801, in the meaning defined above

Time Traveler
The first known use of acclimation was in 1801

Rhymes for acclimation

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Browse Nearby Words

acclimated
acclimation
acclimatise
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Cite this Entry

“Acclimation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acclimation. Accessed 20 Oct. 2026.

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Medical Definition

acclimation

noun
ac·​cli·​ma·​tion ˌak-lə-ˈmā-shən, -ˌlī- How to pronounce acclimation (audio)
: acclimatization especially by physiological adjustment of an organism to environmental change
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