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ses·sile(sĕs′īl′, -əl) Biology
1. Permanently attached or fixed; not free-moving: sessile marine invertebrates.
2. Stalkless and attached directly at the base: sessile leaves.
[Latin sessilis, low, of sitting, from sessus, past participle of sedēre, to sit; see sed- in Indo-European roots.]
ses·sil′i·ty (sĕ-sĭl′ĭ-tē) n.
1. (Botany) (of flowers or leaves) having no stalk; growing directly from the stem
2. (Zoology) (of animals such as the barnacle) permanently attached to a substratum
[C18: from Latin sēssilis concerning sitting, from sedēre to sit]
ses•sile(ˈsɛs ɪl, -aɪl)
1. Bot. attached by the base, or without any distinct projecting support, as a leaf issuing directly from the main stem.
2. Zool. permanently attached; not freely moving.
[1715–25; < Latin sessilis low enough to sit on, dwarfish]
ses•sil•i•ty (sɛˈsɪl ɪ ti) n.
1. Zoology Permanently attached or fixed; not free-moving: Corals and mussels are sessile animals.
2. Botany Stalkless and attached directly at the base: sessile leaves; sessile fruit.
Switch to new thesaurus
|Adj.||1.||sessile - permanently attached to a substrate; not free to move about; "sessile marine animals and plants"|
vagile - having freedom to move about; "vagile aquatic animals"
|2.||sessile - attached directly by the base; not having an intervening stalk; "sessile flowers"; "the shell of a sessile barnacle is attached directly to a substrate"|