Wordnet 3.0
NOUN (1)
1. 
 a chest in which coins from the mint are held to await assay; 
[syn: pyx, pix, pyx chest, pix chest]
WordNet (r) 3.0 (2006):
pyx chest
    n 1: a chest in which coins from the mint are held to await
         assay [syn: pyx, pix, pyx chest, pix chest]