Home › Words › O › osteichthyanosteichthyanosteichthyan means A bony fish of the class Osteichthyes.EtymologyOsteichthyes + -announA bony fish of the class Osteichthyes.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.buchanosteoid 66% match — A fossil fish of the superfamily Buchanosteoidea. vs osteichthyan →actinopterygian 64% match — Any of the ray-finned fish of the taxonomic class Actinopterygii. vs osteichthyan →osteoglossomorph 64% match — Any fish of the superorder Osteoglossomorpha. vs osteichthyan →otophysan 64% match — Any of the fish of the Otophysi series within the Ostariophysi superorder, also known as the Otophysa in some classifications. vs osteichthyan →osteoglossiform 63% match — Any fish of the order Osteoglossiformes vs osteichthyan →actinopterygiian 63% match — Of or pertaining to Actinopterygii, the bony finned fish. vs osteichthyan →holostean 62% match — Any fish of the class or infraclass Holostei. vs osteichthyan →bonytongue 61% match — Any in the family Osteoglossidae of large freshwater fishes or its parent groupings, suborder Osteoglossoidei and order Osteoglossiformes. vs osteichthyan →