definition of
MI

[1] #1 MI n. [myocardial infarction, myocardial infarct] destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle. wn

[2] #2 MI n. [nautical mile, naut mi, mile, mi, geographical mile, Admiralty mile] a former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile. wn

[3] #3 MI n. [nautical mile, mile, mi, naut mi, knot, international nautical mile, air mile] a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude. wn

[4] #4 MI n. [mile, statute mile, stat mi, land mile, international mile, mi] a unit of length equal to 1,760 yards or 5,280 feet; exactly 1609.344 meters. wn

[5] #5 MI n. [Michigan, Wolverine State, Great Lakes State] a midwestern state in north central United States in the Great Lakes region. wn