madreporal

English edit

Etymology edit

Madrepora +‎ -al

Adjective edit

madreporal (not comparable)

Characteristic of or associated with reef coral of genus Madrepora; madreporic.
- 1870, Jules Verne, Twenty Thousand Leagues Under the Sea:
  As the Nautilus headed for Clermont-Tonnere, one of the curious islands of the group discovered in 1822 by Captain Bell of the Minerva, I prepared to study the madreporal system that has created these particular isle.
- 1914, Bulletin of the Seismological Society of America - Volume 4, page 223:
  The instrument is about twenty feet above sea level, and is built on ground composed of hard madreporal rock.
- 1917, The Petroleum World - Volumes 14-15, page 21:
  Liquid fuel, such as the residues of petrol, etc., is absorbed by some porous incombustible substance, such as pumicestone, tufaceous or madreporal material, or bones from which the grease, gelatine, and moisture have been removed, and the resulting product used as a substitute for coal.
- 1926, The Philippine Journal of Science - Volume 31, page 302:
  Looking out to sea, the eye rests on a fringe of madreporal shelves over which the blue waves, broken farther out in a line of silvery foam, come lazily.
Pertaining to a sieve-like plate in echinoderms, which admits water into the ambulacral tubes;
- 1874, Carl Theodor Ernst von Siebold, Anatomy of the Invertebrata:
  Between these vascular rings there is a long muscular heart, which, united to the calcareous pouch or cord, extends from the madreporal plate to the mouth.
- 1883, Sven Ludvig Lovén, Kongl. Svenska Vetenskaps-Akademiens Handlingar, page 80:
  Its constituents are all coalesced into one piece, the madreporal filter spreading its pores over its central forepart.
- 1981, Pieter D. Nieuwkoop, Lien A. Sutasurya, Primordial Germ Cells in the Invertebrates, →ISBN:
  The water-vascular system communicates with the exterior by a separate canal through a single pore or a cluster of pores, the hydropore, situated in the so-called madreporal inter-radius.
- 1993, Otto H. Schindewolf, Wolf-Ernst Reif, Basic Questions in Paleontology:
  Dorsal view with genital plates and large, sievelike madreporal plate in the center, below which is the large, anal field (periproct), shaded dark.