any of several reef-building corals of the genus Meandrina, having a highly convoluted and furrowed surface.
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Origin of brain coral
First recorded in 1700–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for brain coral
This species is commonly known as brain-coral or brain-stone.The Sea-beach at Ebb-tide|Augusta Foote Arnold
British Dictionary definitions for brain coral
a stony coral of the genus Meandrina, in which the polyps lie in troughlike thecae resembling the convoluted surface of a human brain
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012