[smawlt] 
| a coloring agent made of blue glass produced by fusing silica, potassium carbonate, and cobalt oxide, used in powdered form to add color to vitreous materials. |
| smalt (smôlt) n. A deep blue paint and ceramic pigment produced by pulverizing a glass made of silica, potash, and cobalt oxide. [French, from Italian smalto, enamel, glaze, of Germanic origin; see mel-1 in Indo-European roots.] |
