Definition of milchglas in English:
milchglas
(also milch glass)
noun ˈmɪlkɡlɑːsˈmɪlxɡlɑːsˈmɪlxɡlas
A type of white opaque glass, similar in appearance to porcelain. More usually called milk-glass or opaline.
Origin
Early 20th century. From German Milchglas from Milch + Glas.