pyxidium: Meaning and Definition of

pyx•id•i•um

Pronunciation: (pik-sid'ē-um), [key]
— pl. pyx•id•i•a
  1. a seed vessel that opens transversely, the top part acting as a lid, as in the purslane.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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