a. and sb. Zool. Also -ian. [f. mod.L. cycloide-us (f. Gr. κυκλοειδής CYCLOID) + -AN.] A. adj. Belonging to the cycloid fishes. B. sb. A cycloid fish.

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1837.  Buckland, Geol., I. 270. The Herring and Salmon are examples of Cycloidians.

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