n. [L. mater, mother; porus, pore]
An oral or aboral perforated plate of the water-vascular system connecting with the stone canal; sieve plate.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • Madreporite — Mad re*po*rite, n. [Cf. F. madr[ e]porite] 1. (Paleon.) A fossil coral. [1913 Webster] 2. (Zo[ o]l.) The madreporic plate of echinoderms. [1913 Webster] …   The Collaborative International Dictionary of English

  • madreporite — s. f. 1.  [Zoologia] Placa madrepórica dos equinodermos. 2.  [Mineralogia] Madrépora fóssil. • Sinônimo geral: MADREPORITA   ♦ Grafia no Brasil: madreporita …   Dicionário da Língua Portuguesa

  • madreporite — [ma′drə pôr′īt΄] n. [ MADREPORE + ITE1] a porous calcareous plate in most echinoderms, through which the sea enters the water vascular system: see STARFISH, illus …   English World dictionary

  • Madreporite — The madreporite is an opening used to filter water into the water vascular system of echinoderms. It is visible as a small red or yellow button like structure, looking like a small wart, on the aboral surface of the central disk of a starfish.The …   Wikipedia

  • madreporite — noun Etymology: International Scientific Vocabulary madrepore + 1 ite (segment); from the resemblances of the perforations to those of a madrepore Date: 1877 a perforated or porous body that is situated at the distal end of the stone canal in… …   New Collegiate Dictionary

  • madreporite — /mad reuh pawr uyt, pohr , meuh drep euh ruyt /, n. a sievelike plate in certain echinoderms, through which water passes into the vascular system. [1795 1805; MADREPORE + ITE1] * * * …   Universalium

  • madreporite — noun A fossil coral …   Wiktionary

  • Madréporite — Les madréporites sont des ouvertures situées sur la plaque madréporitique des échinodermes : elles font ainsi communiquer le système aquifère de l animal avec le milieu (l eau de mer), leur permettant de respirer et d assurer la régulation… …   Wikipédia en Français

  • madréporite — (ma dré po ri t ) s. f. Madrépore fossile.    Variété de carbonate calcaire …   Dictionnaire de la Langue Française d'Émile Littré

  • madreporite — ma·dre·po·rì·te s.f. TS zool. in molti Echinodermi, piastra formata da una serie di stratificazioni calcaree attraversate da uno o più fori che permettono il passaggio dell acqua tra l interno e l esterno {{line}} {{/line}} DATA: 1806. ETIMO: der …   Dizionario italiano

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