Pyxis

from WordNet (r) 3.0 (2006)

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

from The Collaborative International Dictionary of English v.0.48

Pyxis \Pyx*is\, n. [L.]
   1. A box; a pyx.
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   2. (Bot.) A pyxidium.
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   3. (Anat.) The acetabulum. See {Acetabulum}, 2.
      [1913 Webster]