society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [noun] > glass > crown-glass (3)
A kind of glass of low refractive index and low dispersion made typically from silica, potash, and lime without any lead or iron, originally in…
Glass made in tables (table, n. 25a), often used for windows. Cf. crown glass, n. Now rare.
= crown glass, n. Also: a type or piece of crown glass.