sessile
/ˈsɛsaɪl/ adjective
- adjective (zoology) Permanently attached to a substrate; not free to move about. “a sessile oyster”
- adjective (botany, oncology) Attached directly by the base; not having an intervening stalk; stalkless.
Synonyms
attached fixed immobile immotile immovable inanimate inert lifeless static rigid stationary stuck unmovable unmoveable stalkless
Antonyms
mobile motile vagile ambulatory animate kinetic motive movable pedunculate
Etymology
From Latin sessilis (“sitting”), from sessus, perfect passive participle of verb sedeō (“to sit”), + adjective suffix -ilis. Compare session.
Webster’s 1913
- adjective Attached without any sensible projecting support.
- adjective Resting directly upon the main stem or branch, without a petiole or footstalk; as, a sessile leaf or blossom.
Etymology [L. sessilis low, dwarf, from sedere, sessum, to sit: cf. F. sessile.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “sessile”, CC BY-SA 4.0. Details