Definitions
a small porous bowl made of bone ash used in assaying to separate precious metals from e.g.
lead
Word origin
Borrowed from French coupelle, from Medieval Latin cūpella, from Latin cūpa (“cask”) + -ella (“-elle: forming feminine diminutives”). Equivalent to cup + -el.
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Assayer's bowl”5 letters
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