antiarrhythmic
American Heritage Dictionary:
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an·ti·ar·rhyth·mic
(ăn'tē-ə-rĭTH'mĭk, ăn'tī-) 
adj.
Preventing or alleviating irregularities in the force or rhythm of the heart.
n.
An antiarrhythmic substance, such as lidocaine.
adj.
Preventing or alleviating irregularities in the force or rhythm of the heart.
n.
An antiarrhythmic substance, such as lidocaine.
American Heritage Stedman's Medical Dictionary:
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an·ti·ar·rhyth·mic
(ăn'tē-ə-rĭTH'mĭk, ăn'tī-)
adj.
adj.
Preventing or alleviating irregularities in the force or rhythm of the heart.
n.An antiarrhythmic substance, such as lidocaine.
Saunders Veterinary Dictionary:
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antiarrhythmic
1. preventing or alleviating cardiac arrhythmias.
2. an agent that prevents or alleviates cardiac arrhythmias.
- a. drugs — include quinidine, procainamide, lidocaine, beta-adrenergic blockers such as propranolol, autonomic drugs including atropine and epinephrine, and digitalis.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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