ac·​cli·​ma·​tion | \ ˌa-klə-ˈmā-shən How to pronounce acclimation (audio) , -ˌklī-\

Definition of acclimation

: the process or result of acclimating especially : physiological adjustment by an organism to environmental change

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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

The two males, raised in Illinois, had lived in a small fenced-in corner of the lake for several weeks as an acclimation period. Ryan Gillespie,, "One of Lake Eola’s new black-necked swans has died, city says," 8 July 2019 Well, the freshman jitters, the acclimation to college athletics is officially behind Savana Mata and Victoria Garivey. Robert Avery, Houston Chronicle, "Two former Lady Mavs conclude their freshmen collegiate softball seasons at Lamar," 11 June 2019 The acclimation of some of these underclassmen to the Big 12 style of play will determine if the program can return to being a consistent contender in the conference championship. Matt Murschel,, "Three questions facing the Big 12 this offseason," 3 June 2019 Unlike the temporary acclimation lowlanders gain within weeks, these changes became fixed in their DNA over many generations. Bridget Alex, Discover Magazine, "The World Is Our Niche," 3 June 2019 Getty Images For the most part, Meghan Markle's acclimation into the royal family has been pretty seamless. Kayleigh Roberts, Marie Claire, "Prince Harry Participated in the Royal Family's Annual Boxing Day Hunt, Despite Speculation That He Would Skip," 29 Dec. 2018 Much like his acclimation to the NHL, Barzal took to fashion quickly, keeping a close eye on his Instagram feed in order to keep up on trends and new arrivals. Michael Blinn,, "In Standout Rookie Season, Islanders' Mat Barzal Found a Passion for Style," 19 June 2018 In some ways, Meghan is facing a trickier path because there will be no real period of acclimation for her, as Harry is already a full-time working royal. Marcia Moody, Town & Country, "How Meghan Markle's First Year as a Royal Will Compare with Kate Middleton’s," 27 June 2018 After undergoing an acclimation process in quarantine, she was finally added to the 400,000-gallon H-E-B Caribbean Sea exhibit on May 22, Manjarris said. Alex Park, Houston Chronicle, "Texas State Aquarium adds a 'regal' spotted eagle ray to Caribbean exhibit," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acclimation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of acclimation

1801, in the meaning defined above

History and Etymology for acclimation

acclim(ate) + -ation

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More Definitions for acclimation


ac·​cli·​ma·​tion | \ ˌak-lə-ˈmā-shən, -ˌlī- How to pronounce acclimation (audio) \

Medical Definition of acclimation

: acclimatization especially by physiological adjustment of an organism to environmental change

More from Merriam-Webster on acclimation

Thesaurus: All synonyms and antonyms for acclimation

Comments on acclimation

What made you want to look up acclimation? Please tell us where you read or heard it (including the quote, if possible).


something desired as essential

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