Breadcrumb Home > Dictionary > Index F Cite fibrillate: Meaning and Definition of Find definitions for: fi•bril•late Pronunciation: (f?'bru-l?t", fib'ru-), [key] ? v., -lat•ed, -lat•ing. ?v.t. to cause to undergo fibrillation. ?v.i. to undergo fibrillation. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. See also: fibrillate (Thesaurus) fibrilla fibrillation TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: nosegay Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language