[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.

Nearby words

  1. peristéri,
  2. peritectic,
  3. peritectomy,
  4. peritendineum,
  5. peritendinitis,
  6. perithelium,
  7. perithyroiditis,
  8. peritomy,
  9. peritoneal cavity,
  10. peritoneal dialysis

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

Examples from the Web for perithecium

British Dictionary definitions for perithecium


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

Science definitions for perithecium


[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.