Definition of sessile in English:

sessile

Syllabification: ses·sile
Pronunciation: /ˈsesəl, -īl
 
/

adjective

Biology
  • 1(Of an organism, e.g., a barnacle) fixed in one place; immobile.
    More example sentences
    • Epizoic barnacles are sessile, marine crustaceans and constitute a model system featuring the above conditions.
    • Most radially symmetric animals are sessile, however, echinoderms are able to move.
    • Because anemones are sessile animals, staying put most of their lives, it is important for them to maintain dominance over their territory in competition for food and space.
  • 1.1(Of a plant or animal structure) attached directly by its base without a stalk or peduncle: sporangia may be stalked or sessile
    More example sentences
    • It continues to grow with a dome shape, but it can be sessile or pedunculated.
    • It frequently occurs in the lower uterine segment and may be either sessile or pedunculated.
    • These two phenomena are especially critical for sessile higher plants.

Origin

early 18th century: from Latin sessilis, from sess- 'seated', from the verb sedere.

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