Entry 1 sense Webster, 1913 Cycloganoidei /(s?"kl?-g?-noi"d?-?)/ · Cy·clo·ga·noi·de·i · IPA 01 n. pl. An order of ganoid fishes, having cycloid scales. The bowfin (Amia calva) is a living example. 1. An order of ganoid fishes, having cycloid scales. The bowfin (Amia calva) is a living example.(Zool.)