Madrepora :: Madrepora (n.) A genus of reef corals abundant in tropical seas. It includes than one hundred and fifty species, most of which are elegantly branched..
Madreporaria :: Madreporaria (n. pl.) An extensive division of Anthozoa, including most of the species that produce stony corals. See Illust. of Anthozoa..
Madrepore :: Madrepore (n.) Any coral of the genus Madrepora; formerly, often applied to any stony coral..