a. Zool. [f. ALCYON-IUM + -OID.] Resembling or allied to Alcyonium. Also used subst.
1862. Dana, Man. Geol., 163. Alcyonoid Polyps. Ibid. (1872), Corals, i. 80. The Alcyonoids include some of the gayest and most delicate of coral shrubs.
