The Collaborative International Dictionary
Peridia
Peridium \Pe*rid"i*um\, n.; pl. Peridia. [NL., fr. Gr. ? about + ?, a dim. ending.] (Bot.) The envelope or coat of certain fungi, such as the puffballs and earthstars.
Wiktionary
peridia
n. (plural of peridium English)
WordNet
peridium
n. outer layer of the spore-bearing organ in many fungi
[also: peridia (pl)]
peridia
See peridium