frit

/frɪt/
noun
  1. A fused or partially fused material used as a basis for making glass, glazes, or enamels.
    • The artist mixed frit with water to create a colorful glaze for the pottery.
    • The factory produced a special frit for coating ceramic tiles.
    • In glassmaking, frit is often melted down to form the base of stained glass.
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