English dictionary
cupel
/'k/j//u/p/@/l/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
a small porous bowl made of bone ash used in assaying to separate precious metals from e.g. lead
Source: WordNet 3.0
-
A shallow porous cup, used in refining precious metals, commonly made of bone ashes (phosphate of lime).
Source: webster1913
verb
-
To refine by means of a cupel.
Source: webster1913