柯林斯詞典defroster /di??fr?st?/ 1. N a device by which the de-icing process of a refrigerator is accelerated, usually by circulating the refrigerant without the expansion process (冰箱的)除霜器 返回 defroster劍橋詞典a device that removes frost (= a thin layer of ice ) from a car window , usually by blowing warm air on it （汽車玻璃）除霧器 比較defogger demister 返回 defroster