n. a refractory crucible used in the assay of metals
the GNU version of the Collaborative International Dictionary of English
n. One who, or that which, scorifies; specifically, a small flat bowl-shaped cup used in the first heating in assaying, to remove the earth and gangue, and to concentrate the gold and silver in a lead button.
The Century Dictionary and Cyclopedia
n. In assaying, a small flat dish made of a refractory substance, used in the assay of various ores according to the method called scarification. Such dishes are usually from two to three inches in diameter.
n. An apparatus used in extracting gold and silver from jewelers' sweepings, and in various other chemical operations.