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Related to stony coral: Soft coral
See hard coral.
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 coral of the order Madreporaria, having a calcareous skeleton, aggregations of which form reefs and islands
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.||stony coral - corals having calcareous skeletons aggregations of which form reefs and islands|
coral - marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
brain coral - massive reef-building coral having a convoluted and furrowed surface
mushroom coral - flattened disk-shaped stony coral (usually solitary and unattached)
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