Sessile definition

sĕsīl, -əl
Permanently attached or fixed; not free-moving.

Sessile marine invertebrates.

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Stalkless and attached directly at the base.

Sessile leaves.

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Permanently attached or fixed; not free-moving.

Sessile marine invertebrates.

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Stalkless and attached directly at the base.

Sessile leaves.

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(bot.) Having no pedicel or peduncle; attached directly to the main stem, as the flower and leaves of a trillium plant.
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Attached directly by its base.
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Permanently fixed; immobile.
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Permanently attached or fixed and not free-moving, as corals and mussels.
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Stalkless and attached directly at the base, as certain kinds of leaves and fruit.
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(zoology) Permanently attached to a substrate; not free to move about; “an attached oyster"
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(botany) Attached directly by the base; not having an intervening stalk.
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Origin of sessile

  • Latin sessilis low, of sitting from sessus past participle of sedēre to sit sed- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From New Latin sessÄ«lis (“sitting"), from sessus, perfect passive participle of verb sedÄ“re (“sit"), + adjective suffix -Ä«lis. Compare session.

    From Wiktionary