Found 2 items, similar to perithecium.
English → English (WordNet) Definition: perithecium perithecium n : flask-shaped ascocarp [also: perithecia (pl)]
English → English (gcide) Definition: Perithecium Perithecium \Per`i*the"ci*um\, n. [NL., fr. Gr. ? around + ? box.] (Bot.) An organ in certain fungi and lichens, surrounding and enveloping the masses of fructification. --Henslow. [1913 Webster]