Definition of peristome in English:

peristome

Line breaks: peri|stome
Pronunciation: /ˈpɛrɪstəʊm
 
/

noun

  • 1 Zoology The parts surrounding the mouth of various invertebrates.
    More example sentences
    • Spines and tube feet surrounding the peristome function in locomotion, burrowing, and food-gathering.
    • The peristome can seem quite large.
    • The autozooids have small apertures and often preserve long peristomes inclined at an acute angle to the colony surface.
  • 2 Botany A fringe of small projections around the mouth of a capsule in mosses and certain fungi.
    More example sentences
    • The sporophytes also develop peristomes and a spongy layer.

Origin

late 18th century: from modern Latin peristoma, from Greek peri- 'around' + stoma 'mouth'.

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Pronunciation: skōSH
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a small amount; a little