any sudden instance of the blood supply to the heart muscle itself becoming inadequate, resulting in heart muscle damage; esp., coronary thrombosis
Sudden interruption or insufficiency of the supply of blood to the heart, typically resulting from occlusion or obstruction of a coronary artery and often characterized by severe chest pain. Also called myocardial infarction.
(plural heart attacks)
- An acute myocardial infarction, sometimes fatal, caused by the sudden occurrence of coronary thrombosis, which obstructs the blood supply to the heart and leads to necrosis of heart muscle tissue.
- (figuratively) Death or failure.
- My computer had a heart attack when I tried to get it to run that program.