noun
Refers to the branch of medicine dealing with operations, as opposed to internal medicine (内科).
See also: 内科
彼は外科の専門医です。
He is a specialist in surgery.
外科と内科では治療法が大きく異なる。
Treatment methods differ greatly between surgery and internal medicine.
noun
surgery department
The hospital department where surgical procedures are performed.
外科は3階にあります。
The surgery department is on the third floor.