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(noun)
WordNet. Princeton University. 2010.
Use "practice of medicine" in a sentence
"As to the practice of medicine by clerics, the Fourth Council of the"
"But, while Doctor King had retired absolutely from the practice of medicine as a business, he found it extremely difficult to avoid visiting the amilies of many of his friends and acquaintances when they were sick."