Definition of ostiole in English:

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ostiole

Pronunciation: /ˈästēˌōl/

noun

Botany
(In some small algae and fungi) a small pore through which spores are discharged.
Example sentences
  • In other words, the ascocarp is closed but for an ostiole at the distal end.

Derivatives

ostiolar

Pronunciation: /-ələr/
adjective
Example sentences
  • One of the asci stretches and pushes through the ostiolar opening while its base remains attached to the perithecial wall.

Origin

Mid 19th century: from Latin ostiolum, diminutive of ostium 'opening'.

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