PYXIDIUM Pyx*id"i*um, n.; pl. Pyxidia. Etym: [NL., fr. Gr. Pyx.] (Bot.) (a) A pod which divides circularly into an upper and lower half, of which the former acts as a kind of lid, as in the pimpernel and purslane. (b) The theca of mosses.
PYXIE
Pyx"ie, n. (Bot.)
Defn: Same as Pixy.
PYXIS
Pyx*is, n. Etym: [L.]
1. A box; a pyx.
2. (Bot.)
Defn: A pyxidium.
3. (Anat.)
Defn: The acetabulum. See Acetabulum, 2.