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, "We wish we’d written that: STAT staffers share their favorite stories of 2019," 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, "We wish we’d written that: STAT staffers share their favorite stories of 2019," 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, "Discovery of how cells sense oxygen levels earns Nobel Prize," 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, "Top stories: Mountain-moving climate change, an oxygen-starved city, and rats playing hide-and-seek," 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, "At 5100 meters elevation, a Peruvian gold mining town is the world’s highest settlement—and a good place to study how life at extremely low oxygen levels ravages the body.," 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, "What Exactly Is Altitude Sickness?," 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, "How Ultramarathon Runners Took on World's Most Difficult Trail," 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

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The first known use of mountain sickness was in 1848

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Cite this Entry

“Mountain sickness.” Dictionary, Merriam-Webster, Accessed 15 Jan. 2021.

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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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