mousse 
/ˈmu:s/ noun
plural mouss·es /ˈmu:s/ noun [count, noncount] 1 : a cold and sweet food made with whipped cream or egg whites and usually fruit or chocolate
▪ chocolate mousse ▪ a lemon mousse 2 : a foamy substance that is used in styling a person's hair
▪ a jar of styling/hair mousse
▪ chocolate mousse ▪ a lemon mousse
▪ a jar of styling/hair mousse
