acclimatize

verb

ac·​cli·​ma·​tize ə-ˈklī-mə-ˌtīz 

acclimatized; acclimatizing

: acclimate

acclimatization

ə-ˌklī-mə-tə-ˈzā-shən 

noun

acclimatizer noun

Synonyms of acclimatize

• adapt
• adjust
• tailor
• conform
• put
• suit

Examples of acclimatize in a Sentence

The mountain climbers spent a few days acclimatizing themselves to the high altitude.

had lived through several northern winters before she fully acclimatized her wardrobe

Recent Examples on the Web

Let’s end with a great all-rounder—and a good product for getting acclimatized to using a body cream in your grooming routine. —Adam Hurly, Robb Report, 8 May 2026

Teams that learn their fate on Selection Sunday would play opening-round games as early as Tuesday — that’s not much time to acclimatize. —Jon Wilner, San Diego Union-Tribune, 29 Apr. 2026

But Bhatta and Neupane hoped to knock out the whole trip in less than 24 hours in one push — and without acclimatizing. —Gregory Thomas, San Francisco Chronicle, 14 Mar. 2026

This refers to the process of acclimatizing them to outside conditions. —Marianne Willburn, Better Homes & Gardens, 11 Mar. 2026

Word History

Etymology

ad- + climate + -ize (perhaps modeled on French acclimater) — more at acclimate

First Known Use

1802, in the meaning defined above

Rhymes for acclimatize

• actualize
• antagonize
• apologise
• apologize
• capitalize
• categorize
• characterize
• commercialize
• conceptualize
• contrariwise
• criminalize
• decentralize

Kids Definition

acclimatize

verb

ac·​cli·​ma·​tize ə-ˈklī-mə-ˌtīz 

acclimatized; acclimatizing

: acclimate

acclimatization

ə-ˌklī-mət-ə-ˈzā-shən 

noun

Medical Definition

acclimatize

verb

ac·​cli·​ma·​tize

variants or British acclimatise

ə-ˈklī-mə-ˌtīz 

acclimatized or British acclimatised; acclimatizing or British acclimatising

transitive verb

: to adapt to a new temperature, altitude, climate, environment, or situation

intransitive verb

: to become acclimatized

acclimatization noun

or British acclimatisation

ə-ˌklī-mət-ə-ˈzā-shən