- an optical glass of low dispersion and generally low index of refraction.
- an old form of window glass formed by blowing a globe and whirling it into a disk.
Origin of crown glass
Examples from the Web for crown glass
Historical Examples of crown glass
Their materials are those used in the crown-glass manufacture.
Crown-glass was easy to work, but flaked off in rather short pieces.Cruise of the 'Alert'
R. W. Coppinger
English crown-glass; excellent quality, but not so white as the last.
Such a mixture will produce a dull metal, very attractive of moisture: defects to which the French crown-glass also is subject.
- another name for optical crown
- an old form of window glass made by blowing a globe and spinning it until it formed a flat disc