glost

/ɡlɑst/
noun
  1. A type of lead glaze used on pottery, or the kiln firing used to apply it.
    • The museum displayed ancient bowls finished with glost.
    • Glost firing gives ceramics a shiny, glass-like surface.
    • The potter applied glost to the vase before the final firing.
Synonyms
What does "glost" mean? | whatsthatwordmean | whatsthatwordmean