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Any of various aquatic protozoans of the subclass Suctoria that have a free-swimming ciliated immature form and a sessile, stalked adult form that lacks cilia and feeds by means of suctorial tentacles.
[From New Latin Sūctōria, class name, from neuter pl. of sūctōrius, suctorial; see suctorial.]
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) a protozoan belonging to the class Suctoria, characterized by having suctorial tentacles with which it feeds
(Zoology) a variant form of suctorial
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
suc•to•ri•an(sʌkˈtɔr i ən, -ˈtoʊr-)
1. a suctorial animal.
2. a protozoan of the order Suctoria, which in the adult phase attaches to the substrate by a stalk and feeds by means of suctorial tentacles.adj.
3. belonging or pertaining to the Suctoria.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.