Arrhythmia definition

ə-rĭthmē-ə
Frequency:
Irregularity in the force or rhythm of the heartbeat.
noun
0
0
Any irregularity in the rhythm of the heart's beating.
noun
0
0
An irregularity in the force or rhythm of the heartbeat.

A fatal arrhythmia.

noun
0
0
A condition characterized by such irregularities.

Treatments for cardiac arrhythmia.

noun
0
0
An abnormal rhythm of the heart, often detectable on an electrocardiogram. Electrical impulses in the heart normally originate in the sinoatrial node of the right atrium during diastole and are transmitted through the atrioventricular node to the ventricles, causing the muscle contraction that usually occurs during systole. However, abnormalities of electrical conduction during diastole or systole can result in various alterations of the heartbeat, such as changes in heart rate, skipped or irregular beats, and fibrillation of the heart muscle, which can be life threatening. These electrical disturbances can be caused by metabolic abnormalities, inadequate blood supply (as in coronary artery disease), drug effects, chronic disease, and other factors. Arrhythmias are sometimes treated with the implantation of a pacemaker.
0
0
Advertisement
An irregular heartbeat.
noun
0
0

Other Word Forms

Noun

Singular:
arrhythmia
Plural:
arrhythmias

Origin of arrhythmia

  • New Latin from Greek arruthmiā lack of rhythm from arruthmos unrhythmical a- without a–1 rhuthmos rhythm rhythm

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek ἄρρυθμος (arruthmos), via New Latin arrythmia.

    From Wiktionary