Definition of peristome in English:

peristome

Syllabification: per·i·stome
Pronunciation: /ˈperəˌstōm
 
/

noun

Zoology
  • 1The 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.
  • 1.1 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'.

More definitions of peristome

Definition of peristome in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody