1 [T] to remove the ice from sth 除去（某物的）冰霜；给…除霜: to defrost a fridge 给冰箱除霜

2 [I,T] (used about frozen food) to return to a normal temperature; to make food do this （指冷藏食品）（使）解冻 · Defrost the chicken thoroughly before cooking. 把鸡完全解冻以后再煮。 ☞Look at de-ice. 参看de-ice。