To render opaque.
noun.
Something opaque; specifically, a shade which can be worn over the forehead to protect the eyes from brilliant light.
Shady; dark; hence, obscure.
Impervious to the rays of light; not transparent.
In entomology, having no luster: said of surfaces or colors.
In botany, mostly used in the sense of ‘not shining,’ or ‘dull.’
A similar ware made at Spode, introduced in 1805. Also called feldspar porcelain and ironstone china.
noun.
Opacity.