\Pyx\, n. [L. pyxis a box, Gr. pyxi`s a box, especially of
boxwood, fr. py`xos the box tree or boxwood. See {Box} a
receptacle.] [Written also {pix}.]
1. (R. C. Ch.) The box, case, vase, or tabernacle, in which
   the host is reserved.
2. A box used in the British mint as a place of deposit for
   certain sample coins taken for a trial of the weight and
   fineness of metal before it is sent from the mint.
   --Mushet.
3. (Naut.) The box in which the compass is suspended; the
   binnacle. --Weale.
4. (Anat.) Same as {Pyxis}.
{Pyx cloth} (R. C. Ch.), a veil of silk or lace covering the
   pyx.
{Trial of the pyx}, the annual testing, in the English mint,
   of the standard of gold and silver coins. --Encyc. Brit.

\Pyx\, v. t.
To test as to weight and fineness, as the coins deposited in
the pyx. [Eng.] --Mushet.