mousse

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various chilled desserts made with flavored whipped cream, gelatin, and eggs.
• noun A molded dish containing meat, fish, or shellfish combined with whipped cream and gelatin.
• noun An aerosol foam used to control and style the hair.
• transitive verb To apply a styling foam to (the hair).

from The Century Dictionary.

• noun In cookery, a whipped cream, sweetened and variously flavored, with or without eggs, and frozen without stirring.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Cookery) A frozen dessert of a frothy texture, made of sweetened and flavored whipped cream, sometimes with the addition of egg yolks and gelatin. Mousse differs from ice cream in being beaten before -- not during -- the freezing process.
• noun Any of a variety of foods whipped to a light texture.
• noun A foam containing special chemicals, used for styling hair.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An airy pudding served chilled, particularly chocolate mousse.
• noun A savory dish, of meat or seafood, containing gelatin.
• noun A styling cream used for hair.
• verb To apply mousse (styling cream).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a rich, frothy, creamy dessert made with whipped egg whites and heavy cream
• noun toiletry consisting of an aerosol foam used in hair styling
• verb apply a styling gel to
• noun a light creamy dish made from fish or meat and set with gelatin