excessively rapid heartbeat.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for tachycardia
Historical Examples of tachycardia
Consequently the convulsions, tachycardia, and coma had to be ignored.
I afterwards had periodical attacks of intermittence but never any tachycardia, at least none that lasted more than a few seconds.
But, as I rose, I suddenly felt acute pain along the sternum; at the same time began a strong crisis of tachycardia.
In tachycardia there is an irritation of the accelerator nerves to the heart, in brachycardia of the inhibitory nerves.
Tachycardia is the name applied to a more or less permanent increase in the rate of the heart-beat.
British Dictionary definitions for tachycardia
Derived Formstachycardiac (ˌtækɪˈkɑːdɪˌæk), adjective pathol abnormally rapid beating of the heart, esp over 100 beats per minuteCompare bradycardia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for tachycardia
1868, Modern Latin, coined 1867 by German-born physician Hermann Lebert (1813-1878) from tachy- "swift" + kardia "heart" (see cardiac).
Online Etymology Dictionary, © 2010 Douglas Harper
A rapid heart rate, especially one above 100 beats per minute in an adult.tachyrhythmia
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.