heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)
同义词：deicer
defroster详细解释
de.frost.er n.（名词）A heating device designed to remove frost or prevent its formation.除霜器：一种电热装置，用来除霜或防止霜的形成A device designed to thaw frozen goods.解冻器：一种用来解冻食物地装置
