Madreporian
Pronunciation : Mad`re*po"ri*an, Mad`re*po"ric
Part of Speech : a.
Definition : Defn: Resembling, or pertaining to, the genus Madrepora. Madreporic plate (Zo?l.), a perforated plate in echinoderms, through which water is admitted to the ambulacral tubes; -- called also madreporic tubercule.
(Zo?l.)
Source : Webster's Unabridged Dictionary, 1913