fibrillation

noun fi·bril·la·tion \ ˌfi-brə-ˈlā-shən , ˌfī- \

Definition of fibrillation

1 :an act or process of forming fibers or fibrils
2 a :a muscular twitching involving individual muscle fibers acting without coordination
b :very rapid irregular contractions of the muscle fibers of the heart resulting in a lack of synchronism between heartbeat and pulse

Recent Examples of fibrillation from the Web

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First Known Use of fibrillation

1845


Medical Dictionary

fibrillation

noun fi·bril·la·tion \ ˌfib-rə-ˈlā-shən , ˌfīb- \

medical Definition of fibrillation

1 :an act or process of forming fibers or fibrils
2 a :a muscular twitching involving individual muscle fibers acting without coordination
b :very rapid irregular contractions of the muscle fibers of the heart resulting in a lack of synchronism between heartbeat and pulse — see atrial fibrillation, ventricular fibrillation


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