milk glass

(opaque glass): Referring to the milky look of this type of glass.

milk glass (countable and uncountable, plural milk glasses)

1. (usually uncountable) Opaque glass, especially the kind having a white shade; first produced in Italy in the 1500s as an imitation of Chinese porcelain.

   Alternative forms: milk-glass, milkglass

2. (countable) A drinking glass intended or currently used for milk.

• opal glass