acclimatize

B2
UK/əˈklaɪ.mə.taɪz/US/əˈklaɪ.mə.taɪz/

Formal, technical (especially biological/medical contexts), journalistic. More common in written than casual spoken English.

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Definition

Meaning

To become accustomed to a new climate, environment, or situation, particularly in a physiological sense.

To adjust or adapt psychologically, socially, or professionally to new conditions, stresses, or routines.

Linguistics

Semantic Notes

Often implies a gradual, biological, or systemic adjustment to physical conditions (temperature, altitude, humidity). The process is often non-volitional for the body. Can be used reflexively ('acclimatize oneself').

Dialectal Variation

British vs American Usage

Differences

UK English strongly prefers 'acclimatise' (with 's'), while US English uses 'acclimatize' (with 'z'). The shorter form 'acclimate' is far more common in US English, whereas 'acclimatize' is standard in UK English.

Connotations

In UK contexts, often associated with colonial/military history, mountaineering, and gardening. In US contexts, may sound slightly more technical or formal compared to 'acclimate'.

Frequency

Higher frequency in UK English. 'Acclimatize' is the dominant term. In US English, 'acclimate' is significantly more frequent, making 'acclimatize' sound more deliberate or scientific.

Vocabulary

Collocations

strong
need to acclimatizetake time to acclimatizeallow to acclimatizedifficult to acclimatizefully acclimatizedacclimatize to the heatacclimatize to the altitude
medium
gradually acclimatizeslowly acclimatizehelp acclimatizebegin to acclimatizeacclimatize to the climateacclimatize to new surroundingsacclimatize to the culture
weak
try to acclimatizehope to acclimatizelearn to acclimatizefail to acclimatizeacclimatize to the weatheracclimatize to the environment

Grammar

Valency Patterns

[Subject] acclimatizes (to [Object])[Subject] acclimatizes [Reflexive Pronoun] (to [Object])It takes [Time Period] for [Subject] to acclimatize (to [Object])

Vocabulary

Synonyms

Strong

acclimatehabituatecondition

Neutral

adjustadaptaccustom

Weak

get used tosettle inbecome accustomed

Vocabulary

Antonyms

disorientshockremain unadjusted

Phrases

Idioms & Phrases

  • (to) give someone time to acclimatize
  • in the acclimatization phase

Usage

Context Usage

Business

Rare. Might be used regarding expatriates adjusting to a foreign office culture or market.

Academic

Common in biology, ecology, physiology, sports science, and environmental studies to describe organismic adaptation.

Everyday

Used when discussing travel, moving to a new country, or starting a challenging physical activity in a new environment.

Technical

Core term in meteorology, agriculture (plant acclimatization), and high-altitude medicine.

Examples

By Part of Speech

verb

British English

  • The expedition team will need a week to acclimatise to the thin air before attempting the summit.
  • These tropical plants must be slowly acclimatised to our cooler greenhouse.
  • He never properly acclimatised to the hectic pace of London life.

American English

  • Athletes often arrive early to acclimatize to the time zone and humidity.
  • The software helps new employees acclimatize to the company's complex digital ecosystem.
  • It took months for the rescued animals to acclimatize to the sanctuary.

Examples

By CEFR Level

B1
  • When you travel to a hot country, your body needs time to acclimatize.
  • The new students are still acclimatizing to the school rules.
B2
  • Researchers studied how the coral reefs acclimatize to rising ocean temperatures.
  • After moving from the coast, she found it hard to acclimatize to the dry mountain air.
C1
  • The process of acclimatizing to high altitude involves complex physiological changes, including increased red blood cell production.
  • Corporate policies often fail to account for the time required for international staff to acclimatize both professionally and culturally.

Learning

Memory Aids

Mnemonic

Think: 'A CLIMATE I ZE' (I make a climate for myself). You 'ize' yourself to a new 'climate'.

Conceptual Metaphor

THE BODY IS A MACHINE THAT REQUIRES RECALIBRATION FOR NEW CONDITIONS. LIFE IS A JOURNEY THROUGH DIFFERING CLIMATES.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Not 'акклиматизироваться' in every context. For simple social adjustment, 'adapt' or 'get used to' is more natural. Avoid using for short-term, minor adjustments.

Common Mistakes

  • Using it for immediate, conscious decisions ('I acclimatized to the idea quickly' – poor usage). Confusing with 'accredit' or 'acquaint'. Incorrect preposition: 'acclimatize with' instead of 'acclimatize to'.

Practice

Quiz

Fill in the gap
Before the competition, the marathon runners spent two weeks in the mountains to to the high altitude.
Multiple Choice

In which sentence is 'acclimatize' used LEAST appropriately?

FAQ

Frequently Asked Questions

'Acclimatize' is the standard British form and is common in technical writing. 'Acclimate' is the preferred, shorter form in American English. Their meanings are identical.

Yes, but it retains a connotation of a gradual, almost biological process. For quick mental or social adjustments, words like 'adapt' or 'get used to' are often more natural.

Always 'acclimatize to' (a new environment, the heat, etc.). 'With' is incorrect.

Yes, 'acclimatization' (UK: 'acclimatisation') is the standard noun, describing the process or state of being acclimatized.