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heart attack Definition

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heart attack
noun(heart attack)
an acute episode of coronary heart disease marked by the death or damage of heart muscle due to insufficient blood supply to the heart usually as a result of a coronary artery becoming blocked by a blood clot formed in response to a ruptured or torn fatty arterial deposit —called also myocardial infarction
heart attack
idiom(heart attack)
to scare someone very badly

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