ro·ta·tion/ro`teʃən; rəʊˈteɪʃən/ n 1 [C,U] the action of turning around a fixed point, or one complete turn 旋转（一周）: the rotation of the Earth on its axis 地球绕着地轴的自转 2 in rotation if people do something in rotation, first one person does it, then another, then the first person etc 轮流地，交替地: We work in rotation. 我们轮流工作。