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altitude sickness

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noun Pathology.
  1. a condition affecting some persons at high altitudes, caused by insufficient oxygen in the blood and characterized by dizziness, nausea, and shortness of breath.
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Origin of altitude sickness

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for altitude sickness

altitude sickness

noun
  1. another name for mountain sickness
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

altitude sickness in Medicine

altitude sickness

(ăltĭ-tōōd′)
n.
  1. A collection of symptoms, including shortness of breath, nausea, and nosebleed, brought on by decreased oxygen in the atmosphere, such as that encountered at high altitudes.Acosta's disease
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.