(redirected from madreporitic)
Also found in: Thesaurus.


Any of various hard corals of the genus Madrepora or of the order Scleractinia (formerly Madreporaria).

[Italian madrepora : madre, mother (from Latin māter, mātr-; see māter- in Indo-European roots) + -pora (alteration of poro, tufa, pore, from Late Latin porus, passageway; see pore2, or from Latin pōrus, calcareous stone, stalactite, from Greek pōros).]

mad′re·po′ri·an adj.
mad′re·por′ic adj.


(Zoology) any coral of the genus Madrepora, many of which occur in tropical seas and form large coral reefs: order Zoantharia
[C18: via French from Italian madrepora mother-stone, from madre mother + -pora, from Latin porus or Greek poros calcareous stone, stalactite]
ˌmadreˈporal, madreporic, madreporitic, ˌmadreˈporian adj


(ˈmæd rəˌpɔr, -ˌpoʊr)

any coral of the order Madreporaria forming reefs or islands in tropical seas.
[1745–55; < French]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.madrepore - corals having calcareous skeletons aggregations of which form reefs and islandsmadrepore - corals having calcareous skeletons aggregations of which form reefs and islands
coral - marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
brain coral - massive reef-building coral having a convoluted and furrowed surface
staghorn coral, stag's-horn coral - large branching coral resembling antlers
mushroom coral - flattened disk-shaped stony coral (usually solitary and unattached)
References in periodicals archive ?
He noted that ionic elevation of the water vascular fluid, particularly of potassium ion, could produce an osmotic entry of water into the structures, making madreporitic inflow unnecessary.
As previously noted madreporitic pores cannot be seen in intact specimens of Ophioderma appressum.
All exposed epidermal areas were filled with beads, including the areas just outside the madreporitic pores [ILLUSTRATION FOR FIGURE 23 OMITTED] and the sheaths of the tube feet [ILLUSTRATION FOR FIGURE 27, 28 OMITTED].