Wordnet 3.0
NOUN (1)
1. 
 the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; 
- Example: "he studied medicine at Harvard"[syn: medicine, practice of medicine]
WordNet (r) 3.0 (2006):
practice of medicine
    n 1: the learned profession that is mastered by graduate
         training in a medical school and that is devoted to
         preventing or alleviating or curing diseases and injuries;
         "he studied medicine at Harvard" [syn: medicine,
         practice of medicine]