tachycardia

noun

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
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After years of tests, doctors' appointments, rehabilitation programs, and frustration, Slice was eventually diagnosed with postural orthostatic tachycardia syndrome, or POTS, an autonomic nervous system disorder. Mara Gordon, NPR, 31 May 2025 Risk factors for the condition include connective tissue disorders such as Ehlers-Danlos syndrome as well as postural orthostatic tachycardia syndrome. Danielle Wilhour, The Conversation, 28 May 2025 He was diagnosed with postural orthostatic tachycardia syndrome, which affects his blood flow as his body struggles to maintain steady blood pressure, especially between sitting and standing. Jaclyn Cosgrove, Los Angeles Times, 8 May 2025 But, eventually, her blood pressure changes in response to elevation changes arrived at POTS, an acronym for a medical condition called postural orthostatic tachycardia syndrome. Paul Sisson, San Diego Union-Tribune, 16 Mar. 2025 See All Example Sentences for tachycardia

Word History

Etymology

New Latin

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of tachycardia was in 1889

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Cite this Entry

“Tachycardia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tachycardia. Accessed 3 Jun. 2025.

Medical Definition

tachycardia

noun
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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