ENAMEL

is a vitreous substance or gla , colored if nece ary by the admixture of earths or metallic oxides before fusion, used as @ Surface for porcelain or metal, for decorative or useful purposes. Cloisonne ®@. is applied to a surface divided into a pattern of compartments by fine partitions, each compartment containing a distinct colour; champleve e. is cage a hollowed ground, and is! used in jewellery; surface e. forms a uniform coating like the white e. face of a clock.