altitude sickness


: the effects (such as headache, nausea, or swelling of the brain) of oxygen deficiency in the blood and tissues developed at high altitudes having reduced atmospheric pressure see mountain sickness

Examples of altitude sickness in a Sentence

Recent Examples on the Web Sipping on Peruvian coffee or mate de coca — a beverage made from the leaves of the coca plant (Erythroxylum coca), which abates altitude sickness — visitors on day trips get a glimpse of Uros history, culture and engineering. Tim Brinkhof, Discover Magazine, 12 Nov. 2023 How to prevent altitude sickness, and how not to Can people become immune to altitude sickness? Allie Conti, Field & Stream, 27 Sep. 2023 And, as previously mentioned, the earliest signs of altitude sickness can feel like a hangover. Allie Conti, Field & Stream, 27 Sep. 2023 Among his many scientific feats, he is considered the first to attribute altitude sickness to a lack of oxygen, the first to discover the location of the magnetic equator and also the first to describe how human action impacts ecosystems and local climate. Sean Mowbray, Discover Magazine, 25 Aug. 2022 Any climb at these heights has inherent risks, not least of which is debilitating altitude sickness from the oxygen-thin air. Lori Rackl, Chicago Tribune, 28 June 2023 But don’t let the risk of altitude sickness scare you off entirely. Amanda Ogle, Travel + Leisure, 10 Apr. 2023 Maybe just stock up on altitude sickness medication before taking off. Siobhan Reid, Condé Nast Traveler, 16 June 2023 Some other altitude sickness medications include dexamethasone and nifedipine. Katie Hill, Outdoor Life, 14 June 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'altitude sickness.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of altitude sickness was in 1901

Dictionary Entries Near altitude sickness

Cite this Entry

“Altitude sickness.” Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

Medical Definition

altitude sickness

al·​ti·​tude sickness ˌal-tə-ˌt(y)üd- How to pronounce altitude sickness (audio)
: the effects (as nosebleed, nausea, headache, or cerebral edema) of oxygen deficiency in the blood and tissues developed at high altitudes with reduced atmospheric pressure

More from Merriam-Webster on altitude sickness

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