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alcyonium |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Alcyonium \Al`cy*o"ni*um\, n. [Gr. ? a zo["o]phyte, so called from being like the halcyon's nest.] (Zo["o]l.) A genus of fleshy Alcyonaria, its polyps somewhat resembling flowers with eight fringed rays. The term was also formerly used for certain species of sponges.