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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.
(Zoology) another name for choanocyte
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||collar cell - any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body|
flagellated cell - any cell or one-celled organism equipped with a flagellum
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