madreporicadj.
/ˌmadrᵻˈpɒrɪk/, U.S. /ˌmædrəˈpɔrɪk/ Zoology.
1. Relating to, produced by, or consisting of madrepores. Now rare.
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the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [adjective] > of or relating to the Anthozoa > belonging to order Zoantharia > relating to suborder Madreporaria > relating to madrepore coral
madreporic1805
madreporian1870
1805 Philos. Mag. 22 276 This island is in part volcanic and in part madreporic.
1817 Q. Rev. 17 240 The madriporic [sic] productions which have been found to exist..above the present level of the sea.
1833 C. Lyell Princ. Geol. III. 133 Part of the madreporic rock has been converted into silex and calcedony.
1887 H. H. Howorth Mammoth & Flood 360 The madreporic calcareous deposits surrounding Havana.
1919 Jrnl. Royal Anthropol. Inst. 49 217 The figure..is of the merged madreporic formation of which the island is composed.
1927–9 H. Wheeler Waverley Children's Dict. IV. 2629/2 Corals of this group are described as madreporic.
2. Designating, relating to, or connected with the madreporite of an echinoderm. madreporic plate n. = madreporite n. 3.
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1849 L. Agassiz Twelve Lect. Compar. Embryol. ii. 15/2 The heart is placed along the calcareous tube which arises from the madreporic body.
1855 T. R. Jones Gen. Outl. Animal Kingdom (ed. 2) xi. §639. 222 An isolated calcareous mass..called the madreporic plate.
1863 J. D. Dana Man. Geol. 160 To one side of the dorsal centre..in the regular Echinoids, there is a small porous prominence on the shell, often called the madreporic body, from a degree of resemblance in structure to coral.
1870 H. A. Nicholson Man. Zool. I. xviii. 123 The madreporic canals and their tubercles depending freely from the circular canal into the perivisceral cavity.
1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 204 One of these [genital plates of the Desmosticha] is the madreporic plate.
1946 H. Woods Palæontol. Invertebr. (ed. 8) 142 The bilateral character is inconspicuous in the regular sea-urchins, but the plane of symmetry may be found by means of the madreporic plate.
1963 G. A. Kerkut Borradaile & Potts's Invertebrata (rev. ed.) xvii. 672 The madreporic vesicle, an inconspicuous cavity of morphological importance.
1995 C. Nielsen Animal Evol. xlviii. 367 In crinoids and holothurians, the axial canal has lost contact with the madreporic chamber, and the organ is not a filtrating nephridium.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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adj.1805