ALL meanings of atrial fibrillation
a·tri·um fi·bril·la·tion
A a - noun atrial fibrillation a local and uncontrollable twitching of muscle fibres that results in rapid and irregular heart and pulse rate 3
- noun atrial fibrillation A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart. 0