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Having both a digestive and a circulatory function, as the guts of flatworms and cnidarians.
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.


(Biology) (esp of the body cavities of coelenterates) functioning in digestion and circulation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌgæs troʊˈvæs kyə lər)

adj. Zool.
serving for digestion and circulation, as a cavity.
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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References in periodicals archive ?
For group-2, the identifiable structures were: epidermis and rhabdites, layer of longitudinal muscular fibers, lumen of pharynx, pharynx cavity, gastrovascular cavity, parenchyma and bowel lumen--see Figure 4.
In some corals, the gastrovascular cavity is a flow-through system with many pores that are located near the crests of the sclerosepta of the external body wall and allow uni-directional movement of fluids (Schlichter, 1991, 1992).