noun🔗ShareA small circular receptacle used in assaying gold or silver with lead."The assayer carefully placed the molten alloy in the cupel to separate the pure gold from the lead. "utensilmaterialchemistryscienceChat with AIVocabulary GamePractice Reading
verb🔗ShareTo refine by means of a cupel."The assayer will cupel the gold ore to remove impurities and determine the pure gold content. "chemistrymaterialprocessscienceindustryChat with AIVocabulary GamePractice Reading