ses·sile (sĕsīl′, -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 the Appendix of Indo-European roots.]
ses·sili·ty (sĕ-sĭlĭ-tē) n.
(click for a larger image)sessile
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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