See fire coral.
[Italian millepora : mille, thousand (from Latin mīlle, thousand; see gheslo- in Indo-European roots) + -pora (alteration of poro, tufa, pore; see madrepore).]
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 tropical colonial coral-like medusoid hydrozoan of the order Milleporina, esp of the genus Millepora, having a calcareous skeleton
[C18: from New Latin, from Latin mille thousand + porus hole]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
mil•le•pore(ˈmɪl əˌpɔr, -ˌpoʊr)
a hydrozoan of the genus Millepora that inhabits tropical seas and builds perforated corallike reefs.
[1745–55; < New Latin, = Latin mille thousand + -pora passage; see pore2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.