from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A collection of symptoms, including shortness of breath, headache, and nosebleed, brought on by decreased oxygen in the atmosphere, such as that encountered at high altitudes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A pathological condition caused by oxygen deficiency at high altitudes; symptoms include shortness of breath, nausea, and nosebleed.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. effects (as nosebleed or nausea) of oxygen deficiency in the blood and tissues at high altitudes
Sorry, no etymologies found.