Definition of perithecium in English:

perithecium

Syllabification: per·i·the·ci·um
Pronunciation: /ˌperəˈTHēSH(ē)əm, -sēəm
 
/

noun (plural perithecia /-ˈTHēSH(ē)ə, -sēə/)

Botany
(In some fungi) a round or flask-shaped fruiting body with a pore through which the spores are discharged.
More example sentences
  • A spore leaving the perithecium travels nearly straight up at first.
  • All these steps take place in a specialized fruiting structure, the perithecium.
  • Features of the spores and the perithecium in which they occur suggest that this may be a fossil species of Savoryella.

Origin

mid 19th century: modern Latin, from peri- 'around' + Greek thēkē 'case'.

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