pumice/ˈpʌmɪs; `pʌmɪs/ (also `pumice-stone) n [C, U](piece of) light porous lava used for removing stains or rough patches of skin and (in powder form) for cleaning and polishing 浮岩, 浮石, 轻石（轻而多孔, 可用以去除皮肤污垢或使皮肤光滑, 其粉剂可作清洁剂或抛光剂）.
牛津英汉双解词典