[per-uh-thee-shee-uh m, -shuh m, -see-uh m]

noun, plural per·i·the·ci·a [per-uh-thee-shee-uh, -shuh, -see-uh] /ˌpɛr əˈθi ʃi ə, -ʃə, -si ə/. Mycology.

the fruiting body of ascomycetous fungi, typically a minute, more or less completely closed, globose or flask-shaped body enclosing the asci.

Origin of perithecium

From New Latin, dating back to 1825–35; see origin at peri-, thecium
Related formsper·i·the·ci·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for perithecia


noun plural -cia (-sɪə)

botany a flask-shaped structure containing asci that are discharged from an apical pore; a type of ascocarp

Word Origin for perithecium

C19: from New Latin, from peri- + Greek thēkē case
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

perithecia in Science


[pĕr′ə-thēshē-əm, -sē-əm]

Plural perithecia

A small flask-shaped fruiting body in some ascomycete fungi that encloses the asci (spore sacs).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.