/ Thesaurus / V Synonyms of ventricular fibrillation Find synonyms for: Noun1. ventricular fibrillation, fibrillation, cardiac arrhythmia, arrhythmiausage: fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrestWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language