from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Sudden cessation of heartbeat and cardiac function, resulting in the loss of effective circulation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Sudden and complete cessation of the heartbeat resulting in the loss of effective circulation of the blood.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death
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