Definitions

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.

Etymologies

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)

Examples

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  • Colored glass, often deep blue. Smalts are finely ground to use as colorants for glass and enamel.

    November 9, 2007