オペ

(1)a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"

(2)器具を使用しての切開を伴う医療行為

(3)生体の損傷を修復する、または疾病を食い止めるために行われる

(4)(mathematics) calculation by mathematical methods; "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"; "they were learning the basic operations of arithmetic"

(5)数学的手段による計算

(1)the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation

(2)章の終わりの問題は微分法を含む数学法の例題だった

(3)they were learning the basic operations of arithmetic

(4)彼らは算数の基礎的な演算を学んでいた