infarction

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infarction Death of part of an organ caused by a sudden obstruction in an artery supplying it. In a myocardial infarction (heart attack), a section of heart muscle dies.

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infarction (in-fark-shŏn) n. the death of part or the whole of an organ that occurs when the artery carrying its blood supply is obstructed by a blood clot (thrombus) or an embolus. See also myocardial infarction.

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infarction Death of an area of tissue because its blood supply has been stopped.