tachy·​car·​dia ˌta-ki-ˈkär-dē-ə How to pronounce tachycardia (audio)
: relatively rapid heart action whether physiological (as after exercise) or pathological compare bradycardia

Examples of tachycardia in a Sentence

Recent Examples on the Web For example, some evidence suggests that some people with COVID have developed postural orthostatic tachycardia syndrome (POTS) after infection. Maressa Brown, Health, 31 Oct. 2023 In this unifying framework, fibromyalgia and postural orthostatic tachycardia syndrome (POTS) — other debilitating symptom clusters — are included as subsets of CFS. Steven Phillips, STAT, 14 Sep. 2023 Like turtles, like tortoises, like titanium, terrarium, tachycardia, like tensile strength, tabletop tennis, toilet tanks, trembling tree limbs. Hazlitt, 26 July 2023 Ventricular tachycardia is a major cause of sudden cardiac death, according to MedlinePlus. Maggie O'Neill, Health.com, 15 Apr. 2022 Ventricular tachycardia is a condition where the heart beats faster — usually 100 or more beats per minute, whereas the average is 60 or 100 beats per minute. Caitlin O'Kane, CBS News, 13 Apr. 2022 In a statement, Schwartz confirmed that Gottfried died of recurrent ventricular tachycardia due to type 2 myotonic dystrophy. Christi Carrasstaff Writer, Los Angeles Times, 13 Apr. 2022 Cotton said that a fast heart rate (tachycardia) was a particularly prominent extrapulmonary feature of Omicron. Carla Delgado, Verywell Health, 8 June 2023 That was the first sign of postural orthostatic tachycardia syndrome (also referred to as POTS)—a diagnosis that would soon change my life. Jackie Lam, Women's Health, 7 May 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tachycardia.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of tachycardia was in 1889

Dictionary Entries Near tachycardia

Cite this Entry

“Tachycardia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tachycardia. Accessed 30 Nov. 2023.

Medical Definition


tachy·​car·​dia ˌtak-i-ˈkärd-ē-ə How to pronounce tachycardia (audio)
: relatively rapid heart action whether physiological (as after exercise) or pathological see junctional tachycardia, paroxysmal tachycardia, sinus tachycardia, ventricular tachycardia compare bradycardia

More from Merriam-Webster on tachycardia

Last Updated: - Updated example sentences
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