heart attack
Americannoun
noun
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Necrosis of a region of the heart muscle caused by an interruption in the supply of blood to the heart, usually as a result of occlusion of a coronary artery resulting from coronary artery disease. Symptoms typically include sudden, crushing chest pain, nausea, and sweating. Characteristic changes in the electrocardiogram are used to diagnose heart attacks.
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Also called myocardial infarction
Other Word Forms
Noun Inflected Forms
Etymology
Origin of heart attack
First recorded in 1925–30
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Their mother died when Graham was 20 and his sister was 12, followed less than two years later by their father's death from a heart attack.
From Barron's ● Jul. 13, 2026
The senator’s own father died of a heart attack at 69 when Graham was 22 — pointing to a family history of cardiovascular disease that likely made Saturday night’s outcome tragic, but not inexplicable.
From Salon ● Jul. 13, 2026
His mother died while he attended the University of South Carolina, and his father died of a heart attack during Graham’s first semester of law school.
From Los Angeles Times ● Jul. 12, 2026
But earlier this month, Dedic failed to show up to court and claimed to have suffered a heart attack in Sarajevo.
From BBC ● Jun. 10, 2026
Mr. Flux halted his Time Suck, then stood tall on its back, like when Sheed stood on his bike seat while it was still rolling, nearly giving Grandma a heart attack.
From "The Last Last-Day-of-Summer" by Lamar Giles
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.