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

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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.

First Known Use of acute mountain sickness

1903, in the meaning defined above

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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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