acclimation

noun

ac·​cli·​ma·​tion ˌa-klə-ˈmā-shən 

-ˌklī-

: the process or result of acclimating

especially : physiological adjustment by an organism to environmental change

Synonyms of acclimation

• adjustment
• adaptation
• adaption

Examples of acclimation in a Sentence

a period of acclimation to the region's rising temperatures

Recent Examples on the Web

This method is used for those who have difficulty tolerating retinols and need a slower acclimation process. — Ariana Yaptangco, Glamour, 28 Jan. 2026

This gentle acclimation process protects the plant’s leaves from scorching — a small act of patience that pays off with a healthier, happier aloe. — Lauren Jarvis-Gibson, Sacbee.com, 17 Apr. 2026

The idea of enduring the ingredient’s acclimation phase, which can result in flaking, redness, and dryness as skin gets used to its power, has deterred me. — Sophie Wirt, InStyle, 29 May 2026

Securing greater public buy-in requires emotional acclimation. — Michael Ashley, Forbes.com, 20 May 2026

Word History

Etymology

acclim(ate) + -ation

First Known Use

1801, in the meaning defined above

Rhymes for acclimation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• accusation
• activation
• actuation
• acylation
• adaptation

Medical Definition

acclimation

noun

ac·​cli·​ma·​tion ˌak-lə-ˈmā-shən, -ˌlī- 

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