Home›Browse›M›myocardial infarctionmyocardial infarctionOur editors are putting together more complete content — check back in about 20 minutesmyocardial infarctionmyocardial infarction — nounnoun1. a heart attack caused by blocked blood flow to the heart muscle1.nounDefinitiona heart attack caused by blocked blood flow to the heart muscleExampleHe was rushed to the hospital after suffering a myocardial infarction.