[an-tee-uh-rith -mik, -uh-rith-, an-tahy-]Pharmacology
- of or relating to any substance that prevents, inhibits, or alleviates heartbeat irregularities.
- any such substance, as lidocaine.
Origin of antiarrhythmic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Preventing or alleviating irregularities in the force or rhythm of the heart.
- An antiarrythmic drug.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.