heart attack definition

  • noun:
    • Sudden interruption or insufficiency associated with supply of blood towards the heart, typically caused by occlusion or obstruction of a coronary artery and often characterized by serious chest discomfort. Also called myocardial infarction.
    • An acute myocardial infarction, sometimes fatal, caused by the sudden incident of coronary thrombosis, which obstructs the circulation towards heart and contributes to necrosis of heart muscle tissues.
    • Death or failure.
    • a sudden extreme instance of unusual heart purpose

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