a cold dessert (= a sweet dish) made with cream and egg whites and with fruit, chocolate, etc. to give it a sweet taste; a similar dish made with fish, vegetables, etc. 奶油冻，木斯，慕斯（用奶油和蛋清加水果、巧克力等做成甜食，或加鱼肉、菜等做成凉菜） a chocolate/strawberry mousse 巧克力／草莓奶油冻 salmon/mushroom mousse 鲑鱼／蘑菇奶油冻
a substance that is sold in aerosols, for example the light white substance that is used on hair to give it a particular style or to improve its condition 头发定型剂；摩丝
Word Originmid 19th cent.: from French, ‘moss or froth’.