cupel[kyo̵̅o̅′pəl, kyo̵̅o̅ pel′]
- a small, shallow, porous cup used in assaying gold, silver, etc.
- a hearth for refining metals
Origin: French coupelle ; from Midieval Latin cupella, diminutive ; from Classical Latin cupa: see cup
- cupellation noun
Used by arrangement with John Wiley & Sons, Inc.
- A porous cup, often made of bone ash, used in assaying to separate precious metals from base elements such as lead.
- The bottom or receptacle in a silver-refining furnace.
Origin: French coupelle, from Old French, diminutive of coupe, cup, from Late Latin cuppa, drinking vessel.
- cuˈpel·ler, cuˈpel·er noun