柯林斯詞典dimmer /?d?m?/ (dimmers) 1. N-COUNT A dimmer or a dimmer switch is a switch that allows you to gradually change the brightness of an electric light. (電燈的)調(diào)光器 返回 dimmer劍橋詞典a device for changing the brightness of an electric light , often combined with a switch to turn the light on and off 亮度調(diào)節(jié)器 返回 dimmer