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

But the drops can come with unpleasant side effects, such as tachycardia and retinal detachment. — E. Tammy Kim, New Yorker, 15 Aug. 2026

Those with lupus need to avoid the sun, while some with psoriasis get relief from it; storms can trigger migraines and joint pain; hot weather worsens postural orthostatic tachycardia syndrome (POTS). — Lorraine Boissoneault, STAT, 12 Aug. 2026

Adverse effects include respiratory depression, seizures, loss of consciousness, tachycardia and agitation. — Jesse M. Pines, Forbes.com, 6 Aug. 2026

Shirilla’s defense claimed the teen suffered from postural orthostatic tachycardia syndrome (POTS) — a condition that can cause dizziness and fainting — and had blacked out. — Mekishana Pierre, Entertainment Weekly, 30 July 2026

Word History

Etymology

New Latin

First Known Use

1889, in the meaning defined above

Rhymes for tachycardia

• nocardia
• ardea
• cardia
• giardia
• bradycardia

Medical 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