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. …
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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)
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2.
Any of a variety of foods whipped to a light texture; as, a salmon mousse.
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3.
A foam containing special chemicals, used for styling hair.