: a small shallow porous cup especially of bone ash used in assaying to separate precious metals from lead
cupelled or cupeled; cupelling or cupeling
: to refine by means of a cupel
cupeller
noun
Cite this Entry
“Cupel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cupel. Accessed 1 Jul. 2025.
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