Source : WordNet®

pyxis
     n 1: fruit of such plants as the plantain; a capsule whose upper
          part falls off when the seeds are released [syn: {pyxidium}]
     2: a constellation in the southern hemisphere near Puppis and
        Antlia
     3: a small box used by ancient Greeks to hold medicines
     [also: {pyxides} (pl)]

pyxides
     See {pyxis}