mountain sickness


Definition of mountain sickness

: altitude sickness experienced by mountain climbers or by those ascending or living especially above 8000 to 10,000 feet (about 2500 to 3000 meters) elevation and caused by insufficient oxygen in the air breathed especially : acute mountain sickness

Examples of mountain sickness in a Sentence

Recent Examples on the Web By Martin Enserink, Science Photography by Tom Bouyer, Expedition 5300 Journalist Martin Enserink journeyed high into the Andes to write about research into the effects of chronic mountain sickness — traveling, effectively, into thin air. Stat Staff, STAT, 24 Dec. 2019 These researchers would like to pave the way to therapies for chronic mountain sickness, but first need to better define what living and working at this altitude does to human bodies. Stat Staff, STAT, 24 Dec. 2019 This is essential to avoid mountain sickness and other altitude-associated health issues such as pulmonary and cerebral diseases. Sadeesh K. Ramakrishnan, The Conversation, 8 Oct. 2019 Nearly one in four residents suffers from chronic mountain sickness, a condition caused by a long-term lack of oxygen. Eva Frederick, Science | AAAS, 13 Sep. 2019 The constant oxygen deprivation can cause syndrome called chronic mountain sickness (CMS), whose hallmark is an excessive proliferation of red blood cells. Xing Liu, Science Magazine, 12 Sep. 2019 Altitude sickness, also called mountain sickness, is a term encompassing three distinct conditions that occur at high elevations. Carolyn L. Todd, SELF, 20 Dec. 2018 After powering through unforgiving storms, hypothermia, and mountain sickness, the team completed the trek in 15 days and nine hours. National Geographic, 18 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mountain sickness.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mountain sickness

1848, in the meaning defined above

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Time Traveler for mountain sickness

Time Traveler

The first known use of mountain sickness was in 1848

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Dictionary Entries Near mountain sickness

mountain sheep

mountain sickness


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Cite this Entry

“Mountain sickness.” Dictionary, Merriam-Webster, Accessed 16 Jan. 2022.

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More Definitions for mountain sickness

mountain sickness


Medical Definition of mountain sickness

: altitude sickness experienced especially above 8000 to 10,000 feet (about 2500 to 3000 meters) and caused by insufficient oxygen in the air especially : acute mountain sickness

More from Merriam-Webster on mountain sickness

Thesaurus: All synonyms and antonyms for mountain sickness Encyclopedia article about mountain sickness


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