Precordium
In anatomy, the precordium (praecordium in British English) is the portion of the body over the heart and lower chest.
A more anatomic definition of precordium, is that it is the area of the anterior chest wall over the heart. It is therefore usually on the left side, except in conditions like dextrocardia, where the individual's heart is on the right side. In such a case, the precordium is on the right side as well.