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.
They also had a 16% higher risk of cardiovascular disease, including heart attack, stroke, and angina.
From Science Daily • Jun. 18, 2026
There was also tragedy in their family life -- in 2016 their eldest daughter, Laurence, died aged 58, after a heart attack and having suffered with anorexia since 1974.
From Barron's • Jun. 6, 2026
Bill Heym, who is in the Novartis trial, didn’t find out that he had high levels of the particle until he suffered a heart attack.
From The Wall Street Journal • May 27, 2026
Asked by an audience member whether she would go into the jungle she said: "When you see the snakes around their heads, I think I would have a heart attack."
From BBC • May 25, 2026
Goldman wasn’t much interested in physics, but it struck him that some of the same mathematical principles the group was using might be helpful in deciding whether someone was suffering a heart attack.
From "Blink" by Malcolm Gladwell
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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.