tachy·​car·​dia | \ ˌta-ki-ˈkär-dē-ə How to pronounce tachycardia (audio) \

Definition of tachycardia

: relatively rapid heart action whether physiological (as after exercise) or pathological — compare bradycardia

Examples of tachycardia in a Sentence

Recent Examples on the Web The official name for my new heart troubles, as I’ve recently been diagnosed, is postural orthostatic tachycardia syndrome, or POTS. Deborah Copaken, The Atlantic, "Did COVID-19 Mess Up My Heart?," 4 Sep. 2020 Some of the studies analyzed by the medical group found heart rhythm abnormalities, such as tachycardia and atrial fibrillation, could occur within the hour after weed containing THC is smoked. Sandee Lamotte, CNN, "Weed is not good for your heart, studies say," 5 Aug. 2020 Coronavirus fears Miriam’s 15-year-old daughter, Julieth, suffers from migraines, asthma, chronic gastritis and tachycardia, a rapid heart-rate disorder. Silvia Foster-frau, ExpressNews.com, "Immigrant mother: ‘They tried to separate my daughter from me’," 4 June 2020 In the Brazil study, two of the 37 patients who were getting high doses of chloroquine developed ventricular tachycardia, a dangerous heart arrhythmia that led to their deaths. Melissa Healystaff Writer, Los Angeles Times, "Malaria drugs fail to help coronavirus patients in controlled studies," 17 Apr. 2020 The chemically similar drugs hydroxychloroquine and chloroquine pose heart-rhythm dangers, including the too-fast heartbeat called ventricular tachycardia, the FDA said. Thomas M. Burton, WSJ, "FDA Warns Against Use of Chloroquine Outside of Clinical Trials," 24 Apr. 2020 Anything higher than that is known as tachycardia, the fancy way of describing the sensation that your heart is galloping a mile a minute. Zahra Barnes, SELF, "10 Surprising Reasons Your Heart Is Racing and How to Remedy Them," 27 Mar. 2020 Though the tumor is benign, its location may obstruct blood flow and is often associated with arrhythmias — or abnormal heart rhythms — and ventricular tachycardia, according to Boston Children’s Hospital. Rachel Desantis, PEOPLE.com, "Baby with Rare Heart Tumor Awoke from Coma Smiling — and Now He Needs Life-Saving Surgery," 25 Oct. 2019 Oliver had two episodes of ventricular tachycardia within his first 48 hours. BostonGlobe.com, "IM AND LYDIA CAMERON’S 2½-year-old son, Oliver, doesn’t like to sit still. The toddler climbs and tumbles and runs around their home in Oxfordshire, England. He can play with his Thomas the Tank Engine trains for hours. He hasn’t napped for at least a year.," 28 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tachycardia.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tachycardia

1889, in the meaning defined above

History and Etymology for tachycardia

New Latin

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Time Traveler for tachycardia

Time Traveler

The first known use of tachycardia was in 1889

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Statistics for tachycardia

Last Updated

9 Sep 2020

Cite this Entry

“Tachycardia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tachycardia. Accessed 22 Sep. 2020.

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More Definitions for tachycardia


tachy·​car·​dia | \ ˌtak-i-ˈkärd-ē-ə How to pronounce tachycardia (audio) \

Medical Definition of tachycardia

: 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

Britannica.com: Encyclopedia article about tachycardia

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