arrhythmia

باللغة العربية: اِضْطِرَاب نَظْم القَلْب

1. An irregular heartbeat; a lack of a regular pulse. (countable, uncountable)
2. A disease entity involving such beats, such as atrial fibrillation, ventricular tachycardia, AV nodal reentrant tachycardia, or others. (countable, uncountable)

الجمع arrhythmias