sporangium

from WordNet (r) 3.0 (2006)

sporangium
    n 1: organ containing or producing spores [syn: {sporangium},
         {spore case}, {spore sac}]

from The Collaborative International Dictionary of English v.0.48

Sporangium \Spo*ran"gi*um\ (sp[-o]*r[a^]n"j[i^]*[u^]m), n.; pl.
   {Sporangia} (sp[-o]*r[a^]n"j[i^]*[.a]). [NL., fr. Gr. ? a
   sowing, seed + ? a receptacle.] (Bot.)
   A spore case in the cryptogamous plants, as in ferns, etc.
   [1913 Webster]