ventricular fibrillation
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ventricular fibrillation
n.
An often fatal form of arrhythmia characterized by rapid, irregular fibrillar twitching of the ventricles of the heart in place of normal contractions, resulting in a loss of pulse.
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| Noun | 1. | ventricular fibrillation - fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest arrhythmia, cardiac arrhythmia - an abnormal rate of muscle contractions in the heart fibrillation - muscular twitching involving individual muscle fibers acting without coordination |