Definitions
A deep blue pigment made from powdered glass mixed with cobalt oxide.
Word origin
A borrowing from Italian smalto, from Medieval Latin smaltum, from Frankish *smalt, from Proto-Germanic *smeltaną (“to melt, smelt”). A doublet of smalto.
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Deep blue powder”5 letters
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