D defs.my
Entry 3 senses Webster, 1913

Mousse

/(mo͞os)/ · IPA /muːs/
01 n. A frozen dessert of a frothy texture, made of sweetened and flavored whipped cream, sometimes with the addition of egg yolks and gelatin. …
  1. 1.
    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.(Cookery)
  2. 2.
    Any of a variety of foods whipped to a light texture; as, a salmon mousse.
  3. 3.
    A foam containing special chemicals, used for styling hair.