Surgery as a branch of medicine — the medical specialty concerned with operative procedures.
外科では心臓手術など高度な処置が行われる。
Advanced procedures such as heart surgery are performed in surgery.
外科医になるには長い訓練が必要だ。
Becoming a surgeon requires long training.
事故で外科に緊急搬送された。
He was rushed to the surgical department after the accident.
The department of surgery in a hospital — the clinic/unit responsible for surgical treatment.
外科の予約は電話で取ってください。
Please make an appointment for the surgical department by phone.
父は外科に入院して手術を受けた。
My father was hospitalized in the surgical ward and had an operation.
外科の受付で保険証を提示してください。
Please show your insurance card at the surgery reception.