» This article refers to an object used in Christian church services. For the British coinage procedure, see Trial of the Pyx. Pyx's also the abbreviation for the constellation Pyxis. A pyx or pix (transliteration of Greek: pyxis, box-wood receptacle, from pyxos, box-tree)'s a small container used in the Roman Catholic, Old Catholic and Anglican Churches to carry the consecrated Host (for example, the consecrated Eucharist), to the sick or invalid or those otherwise unable to come to a church i… (More on Pyx)