01 n. pl. The class of the Cœlenterata which includes the corals and sea anemones. The three principal groups or orders are Acyonaria, Actinaria, and…
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The class of the Cœlenterata which includes the corals and sea anemones. The three principal groups or orders are Acyonaria, Actinaria, and Madreporaria.(Zool.)