A myocardial infarction that produces elevation in the ST segments of the ECG. [ NCI ]. The disease is ST Elevation Myocardial Infarction (Experimental Factor Ontology id EFO_0008585). Also known as: ST Elevation Myocardial Infarction by ECG Finding, ST Elevation Myocardial Infarction by EKG Finding, STEMI.