Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun atrial_fibrillation

1 sense of atrial fibrillation

Sense 1
atrial fibrillation -- (fibrillation of the muscles of the atria of the heart)
       => fibrillation -- (muscular twitching involving individual muscle fibers acting without coordination)
       => cardiac arrhythmia, arrhythmia -- (an abnormal rate of muscle contractions in the heart)