glass that is opalescent or white, made by the addition of fluorides
opal glass in American English
noun
a translucent or opaque glass, usually of a milky white hue
Word origin
[1865–70]This word is first recorded in the period 1865–70. Other words that entered Englishat around the same time include: batting average, black belt, goulash, springboard, steamroller
Examples of 'opal glass' in a sentence
opal glass
Each cast-iron dial is 23ft in diameter and contains 312 separate pieces of pot opal glass, a type of glass with an opaque finish.