D defs.my
Entry 1 sense Webster, 1913

Pyxidium

· Pyx·id·i·um · IPA
01 n. 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.
pl. Pyxidia ((#))
  1. 1.
    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.(Bot.)