Bible Dictionaries
Cupel

Webster's Dictionary

(1):

(n.) A shallow porous cup, used in refining precious metals, commonly made of bone ashes (phosphate of lime).

(2):

(v. t.) To refine by means of a cupel.

Bibliography Information
Webster, Noah. Entry for 'Cupel'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/cupel.html. 1828.