atrial fibrillation

[ ey-tree-uhl fib-ruh-ley-shuhn ]

nounPathology.
  1. a cardiac arrhythmia, or irregular heartbeat, caused by rapid, chaotic electrical impulses to the atria. Abbreviation: AF, AFib.: Compare ventricular fibrillation.

Origin of atrial fibrillation

1
First recorded in 1905–10

Words Nearby atrial fibrillation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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