peridium

2 definitions found

peridium - Collaborative International Dictionary of English v.0.48 :

  Peridium \Pe*rid"i*um\, n.; pl. Peridia. [NL., fr. Gr. peri`
     about + ?, a dim. ending.] (Bot.)
     The envelope or coat of certain fungi, such as the puffballs
     and earthstars.
     [1913 Webster]

peridium - WordNet (r) 2.1 (2005) :

  peridium
      n 1: outer layer of the spore-bearing organ in many fungi