acute mountain sickness

noun

Definition of acute mountain sickness

: altitude sickness that is experienced usually within several hours to one day of ascending above 8000 to 10,000 feet (about 2500 to 3000 meters) and that is marked by headache, nausea, loss of appetite, vomiting, insomnia, dizziness, and fatigue, and may lead to serious complications including severe edema of the brain or lungs abbreviation AMS

Examples of acute mountain sickness in a Sentence

Recent Examples on the Web

Yes, lowlanders who ascend to 2500 meters or higher often develop acute mountain sickness, including headaches and nausea. 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 Though the snow is cleared during those three months, the risk of avalanche is still high, not to mention the risk of acute mountain sickness due to low air pressure and low oxygen. Olivia Putnal, Woman's Day, "10 Awe-Inspiring Roads Around the World," 19 Oct. 2010 Blindness is a symptom of acute mountain sickness, a condition that can ultimately lead to death. Marcin Jamkowski, Outside Online, "Rescue on the Killer Mountain," 11 Apr. 2018 During their descent, Mr. Mackiewicz is said to have had acute mountain sickness, caused by the lack of oxygen in the lower air pressure that exists at higher altitudes, as well as snow blindness and frostbite. Meher Ahmad, New York Times, "Climber Rescued on Pakistan’s ‘Killer Mountain,’ but Another Is in Peril," 28 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acute 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 acute mountain sickness

1903, in the meaning defined above

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17 Sep 2019

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The first known use of acute mountain sickness was in 1903

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More Definitions for acute mountain sickness

acute mountain sickness

noun

Medical Definition of acute mountain sickness

: altitude sickness that is experienced usually within several hours to one day of ascending above 8000 to 10,000 feet (about 2500 to 3000 meters) and that is marked by headache, nausea, loss of appetite, vomiting, insomnia, dizziness, and fatigue

Note: Acute mountain sickness can lead to serious complications including severe edema of the brain or lungs.

acute mountain sickness … is common in travelers who ascend rapidly to altitudes above 8,000 feet.— Erick A. Weiss, Rock & Ice Magazine, January/February 1995 abbreviation AMS

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