mountain sickness

noun

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

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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Last Updated

20 Sep 2019

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The first known use of mountain sickness was in 1848

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More Definitions for mountain sickness

mountain sickness

noun

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

Rhyming Dictionary: Words that rhyme with mountain sickness

Britannica.com: Encyclopedia article about mountain sickness

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