Found 2 items, similar to pyxidium.
English → English (WordNet) Definition: pyxidium pyxidium n : fruit of such plants as the plantain; a capsule whose upper part falls off when the seeds are released [syn: pyxis] [also: pyxidia (pl)]
English → English (gcide) Definition: Pyxidium Pyxidium \Pyx*id"i*um\, n.; pl. Pyxidia. [NL., fr. Gr. ?, dim. a ? a box. See 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. [1913 Webster]