Search Result for "bone-ash cup":
Wordnet 3.0

NOUN (1)

1. a small porous bowl made of bone ash used in assaying to separate precious metals from e.g. lead;
[syn: bone-ash cup, cupel, refractory pot]



WordNet (r) 3.0 (2006):

bone-ash cup
    n 1: a small porous bowl made of bone ash used in assaying to
         separate precious metals from e.g. lead [syn: bone-ash
         cup, cupel, refractory pot]