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Any of various aquatic, chiefly freshwater protozoans formerly classified in the class Heliozoa, characteristically having numerous spindlelike pseudopods that radiate from a central cell mass.
[From New Latin Hēliozōa, former class name : helio- (from their shape) + -zōa, pl. of -zōon, -zoon.]
he′li·o·zo′ic (-zō′ĭk) adj.
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 protozoan of the mostly freshwater group Heliozoa, typically having a siliceous shell and stiff radiating cytoplasmic projections: phylum Actinopoda (actinopods)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
he•li•o•zo•an(ˌhi li əˈzoʊ ən)
1. any protozoan of the order Heliozoa, having a spherical body and radiating pseudopodia.adj.
2. Also, he`li•o•zo′ic. of or pertaining to the heliozoans.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||heliozoan - protozoa with spherical bodies and stiff radiating pseudopods|
actinopod - protozoa having stiff rodlike radiating pseudopods
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