Mousse (noun)

1. A dessert made of sweetened, flavored cream or custard, beaten until light and fluffy and often chilled.
2. A light, fluffy dish made from whipped cream, eggs, or a mixture of both, often flavored with chocolate or fruit.
3. A styling product for hair that is used to give it volume and hold.

Origin:

From french, from old french mousse "foam", from old provençal mossa "froth", from latin mulsa "sweet wine", from mulgere "to milk".

Examples:

1. She made a chocolate mousse for dessert.
2. The restaurant offered a variety of mousse on its menu, including raspberry and passion fruit.
3. He used mousse to style his hair before going to the party.
4. The recipe called for whipping the cream until it formed stiff peaks before adding it to the mousse mixture.
5. The mousse was so light and fluffy, it melted in my mouth.