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tachycardia

American  
[tak-i-kahr-dee-uh] / ˌtæk ɪˈkɑr di ə /

noun

Medicine/Medical.
tachycardias plural
  1. excessively rapid heartbeat.


tachycardia British  
/ ˌtækɪˈkɑːdɪˌæk, ˌtækɪˈkɑːdɪə /

noun

  1. pathol abnormally rapid beating of the heart, esp over 100 beats per minute Compare bradycardia

"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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Etymology

Origin of tachycardia

First recorded in 1885–90; tachy- + -cardia

Vocabulary lists containing tachycardia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Several can detect car crashes or spikes in heart rate as a result of tachycardia, along with such conditions as atrial fibrillation and sleep apnea.

From MarketWatch • May 28, 2026

The information from the watch confirmed Ceresnak's suspicion that Connor had supraventricular tachycardia.

From Science Daily • Dec. 13, 2023

A couple of days later, graver symptoms started to appear: gastrointestinal issues, tachycardia, panic attacks, and extreme fatigue that kept him sleeping 20 hours a day.

From Salon • Aug. 27, 2023

She had heart surgery last fall to treat supraventricular tachycardia, an irregularly fast heartbeat.

From Seattle Times • Jul. 31, 2023

Gastric flatulence, while perhaps not a cause of the tachycardia, is liable to develop and be a troublesome symptom.

From Disturbances of the Heart by Osborne, Oliver T. (Oliver Thomas)

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