icing/ˈaɪsɪŋ; `aɪsɪŋ/ (US frosting) n [U]mixture of sugar,egg-white, flavouring, etc for covering and decorating cakes 用糖、 蛋白、 香料等混制的混合物（覆於糕饼上） chocolate icing 巧克力糖衣.
牛津英汉双解词典