Source : Webster's Revised Unabridged Dictionary (1913)

Pix \Pix\, n. & v.
   See {Pyx}.

Source : WordNet®

pix
     n 1: a chest in which coins from the mint are held to await assay
          [syn: {pyx}, {pyx chest}, {pix chest}]
     2: any receptacle in which wafers for the Eucharist are kept
        [syn: {pyx}]