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adj. Botany Stalkless and attached directly at the base: sessile leaves.

adj. Zoology Permanently attached or fixed; not free-moving: a sessile barnacle.

adj. permanently attached to a substrate; not free to move about; “an attached oyster”

adj. attached directly by the base; not having an intervening stalk.

adj. Attached without any sensible projecting support.

adj. Resting directly upon the main stem or branch, without a petiole or footstalk.

adj. Permanently attached; -- said of the gonophores of certain hydroids which never became detached.

In botany, attached without any sensible projecting support; sitting directly on the body to which it belongs without a support; attached by the base: as, a sessile leaf, one issuing directly from the main stem or branch without a petiole or footstalk; a sessile flower, one having no peduncle; a sessile stigma, one without a style, as in the poppy.

In zoöl. and anatomy:

Seated flat or low; fixed by a broad base; not stalked or pedunculated.

Fixed; not free; sedentary.

Specifically, in Crustacea: Having no peduncle, as a cirriped; belonging to the Sessilia. Having no stalk or ophthalmite, as an eye.

In conchology, having no stalk or ommatophore, as an eye.

In entomology, not petiolate, as an abdomen.

In Hydroida, not detachable or separable, as a gonophore.

adj. attached directly by the base; not having an intervening stalk

adj. permanently attached to a substrate; not free to move about

"The ganglia had already finished migrating to three new positions, repeating the same spherical configuration each time, before Richard recognized that what was growing in the sessile was a manna melon."

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fixed    immobile    attached   

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