1A medical surgical operation or procedure performed to treat disease or injury.
医者は明日患者に手術を行う予定だ。
The doctor plans to perform surgery on the patient tomorrow.
手術後は安静が必要です。
After surgery, rest is necessary.
その手術は約三時間かかった。
The operation took about three hours.
心臓手術は高度な技術を要する。
Heart surgery requires advanced skill.
2An obsolete sense meaning manual skill or sleight of hand.