WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathing
Word Usage
"Hyperventilation: the hypocapnia causes a hypoxemia. vasoconstriction and quickly lowers the blood flow in 4% each C. Hemodynamic stabilization: the blood pressure 1mmHg below normal."