a flat piece hinged vertically near the stern of a boat or ship for steering (船的)舵 ■a vertical aerofoil pivoted from the tailplane of an aircraft, for controlling movement about the vertical axis (飞机的)方向舵,舵 ■[mass noun]application of a rudder in steering a boat, ship, or aircraft 操纵船或飞机航向时的)掌舵 bring the aircraft to a stall and apply full rudder. 使飞机发动机停转并掌满舵。 a small amount of extra rudder. 稍稍补加舵的转向程度。
语源
Old English rōther 'paddle, oar', of West Germanic origin; related to Dutch roer, German Ruder, also to the verb row