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holothurian

[hol-uh-thoo r-ee-uh n, hoh-luh-] /ˌhɒl əˈθʊər i ən, ˌhoʊ lə-/
noun
1.
any echinoderm of the class Holothuroidea, comprising the sea cucumbers.
adjective
2.
belonging or pertaining to the Holothuroidea.
Also, holothurioid
[hol-uh-thoo r-ee-oid] /ˌhɒl əˈθʊər iˌɔɪd/ (Show IPA)
.
Origin
1835-1845
1835-45; < Neo-Latin Holothuri(a) genus name (plural of Latin holothūrium < Greek holothoúrion kind of zoophyte, equivalent to holo- holo- + -thourion < ?) + -an
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for holothurioid

holothurian

/ˌhɒləˈθjʊərɪən/
noun
1.
any echinoderm of the class Holothuroidea, including the sea cucumbers, having a leathery elongated body with a ring of tentacles around the mouth
adjective
2.
of, relating to, or belonging to the Holothuroidea
Word Origin
C19: from New Latin Holothūria name of type genus, from Latin: water polyp, from Greek holothourion, of obscure origin
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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holothurioid in Science
holothurian
  (hŏl'ə-thr'ē-ən, hō'lə-)   
Any of various echinoderms of the class Holothuroidea, characterized by elongated bodies with tentacles around the mouth and five rows of tube feet. Holothurians are softer than other echinoderms because they lack spines and the skeleton is greatly reduced. Holothurians can extrude their internal organs to distract predators and grow a new set within a few weeks. Also called sea cucumber.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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