Breadcrumb Home > Thesaurus > F Synonyms of fibrillation Find synonyms for: Noun 1. fibrillation, twitch, twitching, vellication usage: muscular twitching involving individual muscle fibers acting without coordination 2. fibrillation, branching, ramification, fork, forking usage: act or process of forming fibrils WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fibrillation (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: perfidy Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language