component /kəmˈpəunənt/ I. n. ［c］ 组成部分，部件，元件：the various components of a medicine 一种药物的各种成分The engine has more than 30 components. 这台发动机有30个部件。‖II.adj.  组成的，构成的：Iron and carbon are two component elements of steel. 铁和碳是构成钢的两种元素。Blade and handle are the component parts of a knife. 刀刃和把子是小刀的组成部分。