tachycardia that begins and subsides suddenly.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Recurrent attacks of tachycardia, having abrupt onset and termination and originating from an ectopic focus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.