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[tak-i-kahr-dee-uh] /ˌtæk ɪˈkɑr di ə/
noun, Medicine/Medical
excessively rapid heartbeat.
Origin of tachycardia
1885-90; tachy- + -cardia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for tachycardia
  • He was in tachycardia with plummeting blood pressure.
  • Obtain history of the duration of the current episode of tachycardia, if known.
  • The postural tachycardia syndrome a brief review of etiology, diagnosis and treatment.
British Dictionary definitions for tachycardia


(pathol) abnormally rapid beating of the heart, esp over 100 beats per minute Compare bradycardia
Derived Forms
tachycardiac (ˌtækɪˈkɑːdɪˌæk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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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
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tachycardia in Medicine

tachycardia tach·y·car·di·a (tāk'ĭ-kär'dē-ə)
A rapid heart rate, especially one above 100 beats per minute in an adult. Also called tachyrhythmia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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