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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.

Origin of altitude sickness

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for altitude sickness

altitude sickness

noun
  1. another name for mountain sickness
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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.