1. Any receptacle in which wafers for the Eucharist are kept
   "The priest carefully placed the consecrated hosts in the pyx";
   - pix
    
2. A chest in which coins from the mint are held to await assay
   "The newly minted coins were stored in the pyx chest before testing";
   - pix, pyx chest, pix chest [archaic]

Sounds like: piste, pieceix, pyx, pick

Derived forms: pyxes

Type of: chest, receptacle

Encyclopedia: Pyx