CUPELER
- cupeller (one that cupels (to refine gold or silver in a cuplike vessel)) [n CUPELERS]
- someone who cupels, also CUPELLER [n -S]
- receptacle or furnace bottom in which silver is refined
- to heat or refine in a cupel
- small, cuplike, porous container, usually made of bone ash, used in assaying, as for separating gold and silver from lead