tachycardia
noun
tachy·car·dia
ˌta-ki-ˈkär-dē-ə 
: relatively rapid heart action whether physiological (as after exercise) or pathological compare bradycardia
Examples of tachycardia in a Sentence
Recent Examples on the Web
Postural orthostatic tachycardia syndrome (POTS) (a condition with lightheadedness and a fast heart rate when changing to a standing position)
Types of Migraine
The two main types of migraine are:4
Migraine without aura.
—
Cathy Nelson, Verywell Health, 3 June 2025
After she was diagnosed with postural orthostatic tachycardia syndrome, an autonomic nervous system disorder, Jessica Slice embraced a new identity: a person with a disability.
—Brittney Melton, NPR, 2 June 2025
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
See All Example Sentences for tachycardia
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Cathy Nelson, Verywell Health, 3 June 2025
After she was diagnosed with postural orthostatic tachycardia syndrome, an autonomic nervous system disorder, Jessica Slice embraced a new identity: a person with a disability.
—Brittney Melton, NPR, 2 June 2025
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
See All Example Sentences for tachycardia
Cite this Entry
“Tachycardia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tachycardia. Accessed 21 Jun. 2025.
Copy CitationMedical Definition
tachycardia
noun
tachy·car·dia
ˌtak-i-ˈkärd-ē-ə
: relatively rapid heart action whether physiological (as after exercise) or pathological see junctional tachycardia, paroxysmal tachycardia, sinus tachycardia, ventricular tachycardia compare bradycardia
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