Pathology. a cardiac arrhythmia characterized by rapid, chaotic electrical impulses to the ventricles, incomplete ventricular contractions, and resultant loss of pulse and blood pressure.
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Medicine definitions for ventricular fibrillation
An often fatal form of arrhythmia characterized by rapid, irregular fibrillar twitching of the ventricles of the heart instead of normal contractions, resulting in a loss of pulse.v-fib
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.