from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A deep blue paint and ceramic pigment produced by pulverizing a glass made of silica, potash, and cobalt oxide.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a deep blue pigment made from powdered glass mixed with cobalt oxide
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. Common glass tinged of a fine deep blue by the protoxid of cobalt.
French, from Italian smalto, enamel, glaze, of Germanic origin; see mel-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)