• WordNet 3.6
    • n madrepore corals having calcareous skeletons aggregations of which form reefs and islands
    • ***
Webster's Revised Unabridged Dictionary
    • n Madrepore (Zoöl) Any coral of the genus Madrepora, a group of corals having calcareous skeletons aggregations of which form reefs and islands; formerly, often applied to any stony coral.
    • ***
Century Dictionary and Cyclopedia
    • n madrepore An animal, or a coral, of the genus Madrepora or family Madreporidœ; the polypite or the polypidom of a perforate madreporarian: a name loosely extended to any stone-coral with madre poriform cavities or openings. In true madrepore the animal or polypite is hexameral with twelve short tentacles, and the polypidom is of branching form and stony hardness. Madrepore coral consists of corbonate of as Carbonate of lime, with traces of animal matter, and is formed by gradual deposition in the tissues of the compound polyp, so that in course of time the whole presents the appearance of a number of polyps supported on an extraneous body. When the animal matter has been removed madrepore is of a white color, wrinkled on the surface, and full of little cavities, in each of which an individual polyp was lodged, the radiating septa of the cavities corresponding to the internal divisions of the animal. Madrepores raise up walls and reefs of coral rocks with considerable rapidity in tropical climates.
    • ***
Chambers's Twentieth Century Dictionary
    • n Madrepore mad′re-pōr the common coral.
    • ***


Webster's Revised Unabridged Dictionary
F. madrepore, perh. fr. madré, spotted, fr. OF. madre, mazre, a kind of knotty wood with brown spots, fr. OHG. masar, a knot, grain, or vein in wood, a speck, G. maser + pore,see Pore); or perh. F. madrépore, is rather from It. madrepora, and this perh. fr. It. madre, mother (see Mother) + Gr. a soft stone
Chambers's Twentieth Century Dictionary
Fr.,—It., from madre, mother—L. mater, and -pora—Gr. pōros, a soft stone.


In literature:

The sub-soil of Paris, if the eye could penetrate its surface, would present the aspect of a colossal madrepore.
"Les Misérables Complete in Five Volumes" by Victor Hugo
I could study now the madreporal system, to which are due the islands in this ocean.
"Twenty Thousand Leagues under the Sea" by Jules Verne
Those here are of reddish variegated, hardened sandstone, with madrepore holes in it.
"Missionary Travels and Researches in South Africa" by David Livingstone
Consider the madrepores, corallines, or sponges.
"Pagan & Christian Creeds" by Edward Carpenter
You have seen the room in the British Museum full of corals, madrepores, brain-stones, corallines, and sea-ferns?
"Madam How and Lady Why or, First Lessons in Earth Lore for Children" by Charles Kingsley
Calcareous incrustations, including fragments of madrepores, and of shells, cemented by splintery carbonate of lime.
"Narrative of a Survey of the Intertropical and Western Coasts of Australia] [Volume 2 of 2]" by Phillip Parker King
On the beach the fossil Madrepore is often found.
"From John O'Groats to Land's End" by Robert Naylor and John Naylor
The ridges are generally hardened sandstone, marked with madrepores, and masses of brown haematite.
"The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume I (of 2), 1866-1868" by David Livingstone
The labour of the humblest of these, that of the madrepores, has created islands and continents.
"A Mummer's Tale" by Anatole France
He bent and affected to examine the madrepore.
"Major Vigoureux" by A. T. Quiller-Couch
The madrepore pier had been nearly swept away, and the houses near the water were flooded.
"Southern Arabia" by Theodore Bent
Tonga Tabou is of madreporic formation, with a thick covering of vegetable soil, favourable to an abundant growth of shrubs and trees.
"Celebrated Travels and Travellers" by Jules Verne
Corals and Madrepores first claim our attention, because they occupy the lowest place, with the exception of sponges, in the animal scale!
"Harper's New Monthly Magazine, Volume 1, No. 2, July, 1850." by Various
The Madrepore stone is found among the fossil productions of Ashton.
"Curiousities of Great Britain: England and Wales Delineated Vol. 1" by Thomas Dugdale
Here too is a massive shrub of stone, a noble example of the Muricated Madrepore.
"Omphalos" by Philip Henry Gosse