1. antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed; [syn: tocainide, Tonocard]
WordNet (r) 3.0 (2006):
Tonocard
n 1: antiarrhythmic drug (trade name Tonocard) used to treat
ventricular arrhythmias when less dangerous drugs have
failed [syn: tocainide, Tonocard]