Definition of "fibrillated" []

• Present participle of fibrillate. (verb)

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• "Your friend was in a particularly serious situation as physical activity had shortened the amount of time he could remain fibrillated and be revived."
• "One hundred yards -- and I used to run a lot in those days, and so we went into the medical unit and the guy said: Your heart's in sinus rhythm here, your heart fibrillated."
• "But even while his heart fibrillated and his red face grew redder, his mind raced to come up with the appropri­ate Scriptural verse."