1. scleractinian - Noun
2. scleractinian - Adjective
scleractinian (comparative more scleractinian, superlative most scleractinian)
Of, pertaining to, or characteristic of the corals of the order Scleractinia.
scleractinian (plural scleractinians)
Any of the corals of the order Scleractinia.
Replacement and recrystallization Recrystallized scleractinian coral (aragonite to calcite) from the Jurassic of southern Israel Replacement occurs when the shell, bone or other tissue is replaced with another mineral. Source: Internet
Many scleractinian corals—which form the structural foundation for coral reefs —possess polyps that are filled with endosymbiotic algae. Source: Internet