Definition of pyxidium in English:

pyxidium

Pronunciation /pikˈsidēəm/ /pɪkˈsɪdiəm/

nounpyxidia

Botany
  • A seed capsule that splits open so that the top comes off like the lid of a box.

Origin

Mid 19th century modern Latin, from Greek puxidion, diminutive of puxis ‘box’.