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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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Nouns

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.

See Examples For:

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

Ardis has also claimed that people with A-fib can soak their feet in a tobacco leaf tea, and expect their condition, or other heart conditions like tachycardia, to disappear “forever.”

From Salon Jan. 9, 2026

Others can develop something called POTS, which stands for postural orthostatic tachycardia syndrome, and can cause sharp spikes in the heart rate and dizziness.

From Los Angeles Times May 25, 2024

In many cases of supraventricular tachycardia, the abnormal heart rhythm is caused by a small short-circuit in the heart's electrical circuitry.

From Science Daily Dec. 13, 2023

It is different from paroxysmal tachycardia, in which the heart rate rarely exceeds 180 per minute.

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

Even the risk of a specific subset of tachycardias, paroxysmal supraventricular tachycardiaswas elevated up to 6 months after the infection and was five times greater in the first month.

From Science Daily Dec. 13, 2023

Paroxysmal tachycardias are certainly caused by these substances, and the conditions of auricular fibrillation and auricular flutter may be found frequently present if such hearts are carefully examined with cardiographic instruments.

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

Many of the so- called tachycardias are really instances of auricular fibrillation or flutter.

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

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