acclimatise

verbC1Very rare — outside the 30,000 commonest English words, so you will meet it in writing rather than in speechneutral

Other forms: acclimatised, acclimatising

To acclimatise is to let your body get used to thinner air. Acclimatise for a week, fail to acclimatise, acclimatise slowly.

The body makes more red cells and breathes differently, and it cannot be hurried. Climbing high and sleeping low is the standard way to acclimatise on a big mountain.

Definitions of acclimatise

1verbacclimatiseTo let your body get used to thinner air.C1
“They spent four days at base camp to acclimatise.”

acclimatise is an adjusting.

Also accepted in games: acclimatize

Where it comes from

From acclimate + -ise.

Etymology from Wiktionary, CC BY-SA

Practised in Camping & Outdoors

Practise this word

acclimatise in the wild

Putre is on the edge of the Lauca National Park, and is popular with visitors to the National Park wishing to acclimatise to the altitude.
Putre
B and tries to acclimatise to her new position in upper-class society.
Pamela; or, Virtue Rewarded
Sharp had previously summited Cho Oyu and was noted as a talented rock climber who seemed to acclimatise well.
David Sharp (mountaineer)
However, the difficulty of Stok Kangri is often underestimated and the need to acclimatise before and during the ascent makes Stok Kangri an enduring challenge.
Stok Kangri
Sometimes racers may arrive several days ahead of time, to claim a good camping spot, preview the course or acclimatise to altitude.
24 hour mountain bike races

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.

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