myocardial infarction vs myocardial infarct

myocardial infarction and myocardial infarct both are nouns.

Word	Noun	Adjective	Verb	Adverb
myocardial infarction	Yes	No	No	No
myocardial infarct	Yes	No	No	No

As nouns, myocardial infarction and myocardial infarct are synonyms defined as:

myocardial infarction and myocardial infarct: destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle

Other synonyms of myocardial infarction include MI.

myocardial infarction (noun)	myocardial infarct (noun)
destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle	destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle