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Any of various solitary or colonial sedentary tunicates of the class Ascidiacea, having a sac-shaped body with two siphons. Also called ascidian.
[From its habit of squirting water when disturbed.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Animals) any minute primitive marine animal of the class Ascidiacea, most of which are sedentary, having a saclike body with openings through which water enters and leaves. See also ascidian
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
any of several attached tunicates of the class Ascidiacea, that, on contraction, eject a stream of water.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Any of various primitive sea animals having a transparent, sac-shaped body with two siphons. Sea squirts pump water through the siphons and filter it with gill-like structures to catch food particles. Sea squirts belong to the group known as tunicates.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||sea squirt - ascidian that can contract its body and eject streams of water|
ascidian - minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves
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