any irregularity in the rhythm of the heart's beating
Origin of arrhythmiaModern Latin from Gr, lack of rhythm from a-, without + rhythmos, measure
- An irregularity in the force or rhythm of the heartbeat: a fatal arrhythmia.
- A condition characterized by such irregularities: treatments for cardiac arrhythmia.
Origin of arrhythmiaNew Latin from Greek arruthmiā lack of rhythm from arruthmos unrhythmical a- without ; see a- 1. rhuthmos rhythm ; see rhythm .
- An irregular heartbeat.
From Ancient Greek ἄρρυθμος (arruthmos), via New Latin arrythmia.