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sessile

[ses-il, -ahyl] /ˈsɛs ɪl, -aɪl/
adjective
1.
Botany. attached by the base, or without any distinct projecting support, as a leaf issuing directly from the stem.
2.
Zoology. permanently attached; not freely moving.
Origin
1715-1725
1715-25; < Latin sessilis fit for sitting on, low enough to sit on, dwarfish (said of plants), equivalent to sess(us) (past participle of sedēre to sit1) + -ilis -ile
Related forms
sessility
[se-sil-i-tee] /sɛˈsɪl ɪ ti/ (Show IPA),
noun
pseudosessile, adjective
subsessile, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for sessile
  • The sessile filter feeding organisms inhabit the wave exposed shores.
British Dictionary definitions for sessile

sessile

/ˈsɛsaɪl/
adjective
1.
(of flowers or leaves) having no stalk; growing directly from the stem
2.
(of animals such as the barnacle) permanently attached to a substratum
Derived Forms
sessility (sɛˈsɪlɪtɪ) noun
Word Origin
C18: from Latin sēssilis concerning sitting, from sedēre to sit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sessile
sessile
1725, "adhering close to the surface," from L. sessilis "pertaining to sitting," from sessum, pp. of sedere "to sit" (see sedentary). Meaning "sedentary" first recorded 1860.
Online Etymology Dictionary, © 2010 Douglas Harper
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sessile in Medicine

sessile ses·sile (sěs'īl', -əl)
adj.
Permanently attached or fixed; not free-moving.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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sessile in Science
sessile
  (sěs'īl')   

  1. Permanently attached or fixed and not free-moving, as corals and mussels.

  2. Stalkless and attached directly at the base, as certain kinds of leaves and fruit.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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7
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