from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Abnormally fast or deep respiration, which results in the loss of carbon dioxide from the blood, thereby causing a fall in blood pressure, tingling of the extremities, and sometimes fainting.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the state of breathing faster or deeper than necessary
from the GNU version of the Collaborative International Dictionary of English
- n. The act or process of hyperventilating; breathing rapidly and deeply.
- n. A condition in which alveolar carbon dioxide concentration is markedly lower than normal, usually due to breathing rapidly and deeply.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an increased depth and rate of breathing greater than demanded by the body needs; can cause dizziness and tingling of the fingers and toes and chest pain if continued
Sorry, no etymologies found.