Definitions for "Opal Glass"
Translucent white glass developed in 17thC Venice and later made throughout Europe. It was particularly popular in Britain during the 19thC for cheap ornamental wares. translucency was achieved by adding bone ash to the molten glass. When held up to the light, the glass shows slight reddish tones.
a milky white translucent or opaque glass
Glass that resembles an opal, being translucent and white, with a grayish or bluish tint.