Frosting
Frosting , noun
1.
A composition of sugar and beaten egg, used to cover or ornament cake, pudding, etc.
2.
A lusterless finish of metal or glass; the process of producing such a finish.
3.
the lightened color on part of an object, as of hair, produced by treatment with bleach or other chemicals; as only part of the object is thus treated, the final color of the object is two-toned; also, the process of producing such a two-toned effect.