( v. t. )
A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder.
( v. t. )
A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012