Cite
 

Meaning of heart attack

heart' attack"

Pronunciation: [key]
— Pathol. Pathol.
  1. damage to an area of heart muscle that is deprived of oxygen, usually due to blockage of a diseased coronary artery, typically accompanied by chest pain radiating down one or both arms, the severity of the attack varying with the extent and location of the damage; myocardial infarction. Cf. coronary thrombosis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.