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tachycardia

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

noun

Medicine/Medical.
  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

Other Word Forms

  • tachycardiac adjective

Etymology

Origin of tachycardia

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

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.

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

To understand more about radiation's effects on the heart, the researchers plan to continue their investigations of the patients already receiving radiation therapy for ventricular tachycardia.

From Science Daily • Nov. 28, 2023

Researchers will target a condition known as postural orthostatic tachycardia syndrome, or POTS, that is marked by irregular heartbeat, dizziness and fatigue.

From Washington Times • Jul. 31, 2023

She suffers from lupus, postural tachycardia syndrome and chronic anemia, for which she has to be medicated indefinitely.

From Los Angeles Times • Jul. 15, 2023

Caffein can irritate the heart and cause irregularity and tachycardia, especially in certain persons.

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