[per-uh-thee-shee-uh m, -shuh m, -see-uh m]
- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for perithecia
The perithecia are arranged in a circle neat the apex of the stroma.
Our figure 856 shows a section, and the arrangement of the perithecia.
The walls of the perithecia are carbonous, and confluent with the crust.
Also that the perithecia themselves are not perforated at the apex.
The perithecia are engendered where two filaments cross each other.
- botany a flask-shaped structure containing asci that are discharged from an apical pore; a type of ascocarp
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
- 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.