arrhythmic

Medical Dictionary

arrhythmic ar·rhyth·mic (ə-rĭð'mĭk)
adj.
Lacking rhythm or regularity of rhythm.

American Heritage
Medical Dictionary

arrhythmia ar·rhyth·mi·a (ə-rĭð'mē-ə)
n.
An irregularity in the force or rhythm of the heartbeat.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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