Pronunciation: (per"u-thē'shē-um, -sē-um), [key]
—pl. -ci•aPronunciation: (-shē-u, -sē-u). [key] Mycol.
the fruiting body of ascomycetous fungi, typically a minute, more or less completely closed, globose or flask-shaped body enclosing the asci.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.