Acclimation | Definition of Acclimation by Merriam-Webster


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

Keep scrolling for more

Examples of acclimation in a Sentence

a period of acclimation to the region's rising temperatures
Recent Examples on the Web This has been a year of partial acclimation to that fact. Megan Garber, The Atlantic, "Beware False Endings," 31 Oct. 2020 Martin’s role will be defined over time, of course, depending on his acclimation and the development of those around him. Mike Anthony,, "Mike Anthony: UConn’s Tyrese Martin left a good situation at Rhode Island for a better one in Storrs," 11 Oct. 2020 The school hopes to have all players back on campus Sept. 10, hold five days of practice and heat acclimation and host Valley Head on Sept. 18. Ben Thomas |, al, "Another Birmingham-area football team forced to quarantine after positive COVID test," 27 Aug. 2020 And the less-than-intuitive touchpad controls of the A35's MBUX infotainment system—with dual 10.3-inch instrument cluster and center-stack screens, upsized from the A-class's standard 7.0-inchers—requires some acclimation. Mike Sutton, Car and Driver, "Tested: 2020 Mercedes-AMG A35 Leads to Wilder AMGs," 18 Sep. 2020 Warriors' coach Mark Rose said 24 players are in the five-day acclimation period after quarantine. Dennis Victory, al, "Helena, Russell County cancel football games because of COVID-19," 15 Sep. 2020 There’s going to be an acclimation period for Burrow and all rookies early on in the season. Tyler Dragon, The Enquirer, "'The starter the day he walked in the door': Joe Burrow set to be only starting rookie QB Week 1," 11 Sep. 2020 Gregory has worked out on his own but will be subject to an acclimation period after his three negative COVID-19 tests. Jori Epstein, USA TODAY, "Dallas Cowboys DE Randy Gregory wins reinstatement appeal: ‘It’s go time’," 5 Sep. 2020 Johnson will be one of two newcomers to officially begin practice next week, as Australian punter Oscar Chapman, who also arrived on campus last month, has also finished his acclimation period and is set to join the team on the field. Tom Green |, al, "Reclassified WR Malcolm Johnson Jr. to start practice this week, immediately eligible for Auburn," 5 Sep. 2020

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.

See More

First Known Use of acclimation

1801, in the meaning defined above

History and Etymology for acclimation

acclim(ate) + -ation

Keep scrolling for more

Learn More about acclimation

Time Traveler for acclimation

Time Traveler

The first known use of acclimation was in 1801

See more words from the same year

Statistics for acclimation

Last Updated

8 Nov 2020

Cite this Entry

“Acclimation.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2020.

Keep scrolling for more

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).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!