tentacle

[ten-tuh-kuhl]
noun
1.
Zoology. any of various slender, flexible processes or appendages in animals, especially invertebrates, that serve as organs of touch, prehension, etc.; feeler.
2.
Botany. a sensitive filament or process, as one of the glandular hairs of the sundew.

Origin:
1755–65; < Neo-Latin tentāculum, equivalent to Latin tentā(re) (variant of temptāre to feel, probe) + -culum -cule2

tentacular [ten-tak-yuh-ler] , adjective
tentaclelike, tentaculoid, adjective
intertentacular, adjective
subtentacular, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
tentacle (ˈtɛntəkəl)
 
n
1.  any of various elongated flexible organs that occur near the mouth in many invertebrates and are used for feeding, grasping, etc
2.  any of the hairs on the leaf of an insectivorous plant that are used to capture prey
3.  something resembling a tentacle, esp in its ability to reach out or grasp
 
[C18: from New Latin tentāculum, from Latin tentāre, variant of temptāre to feel]
 
'tentacled
 
adj
 
'tentacle-like
 
adj
 
tentaculoid
 
adj
 
tentacular
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

tentacle
1762, from Mod.L. tentaculum "feeler," from L. tentare "to feel, try" (variant of temptare "to feel, try, test") + -culum, diminutive suffix.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

tentacle ten·ta·cle (těn'tə-kəl)
n.
An elongated, flexible, unsegmented extension, as one of those surrounding the mouth or oral cavity of the squid, used for feeling, grasping, or locomotion.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
tentacle   (těn'tə-kəl)  Pronunciation Key 
A narrow, flexible, unjointed part extending from the body of certain animals, such as an octopus, jellyfish, or sea anemone. Tentacles are used for feeling, grasping, or moving.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
They may come whole, or cleaned and separated into tubes and tentacles.
In a group round the mouth were sixteen slender, almost whiplike tentacles,
  arranged in two bunches of eight each.
Bring confidence upon the algae and the tentacles of the soul.
Each one has a little cup with a mouth and a ring of tentacles.
Synonyms
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