Surgery (noun)

1. The branch of medicine concerned with the treatment of injuries, deformities, and diseases by manual or operative methods.
2. An operation or series of operations performed on a person's body to treat a disease or injury.
3. A room or building where surgical operations are carried out.

Origin:

Middle english surgerie, from anglo-french, from latin chirurgia, from greek cheirourgia, from cheirourgos surgeon, from cheir hand + ergon work.

Examples:

1. He had surgery on his broken leg.
2. The surgery was a success.
3. She is going to have surgery next week.
4. The surgery took place in the hospital.
5. He is a skilled surgeon.