arrhythmia; abnormal rhythm; dysrhythmia
Medical term for an irregular heartbeat or abnormal rhythm, typically used in clinical contexts.
A cardiac arrhythmia is also called an irregular heartbeat.
This medication is used to treat arrhythmias.
不整脈 is the more common and general term for arrhythmia, while 調律異常 is a more technical or formal medical expression.
Compound of 調律 (regulation, tuning) and 異常 (abnormality). The exact historical derivation is uncertain; the term is used in modern medical contexts.