Dictionary.com
Thesaurus.com
Synonyms

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

Other Word Forms

Derived Forms

Inflected Forms

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.

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

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

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

His first attack of paroxysmal tachycardia came in his thirty-seventh year.

From Psychotherapy by Walsh, James J. (James Joseph)

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "tachycardia" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com