perciformes perciform • Perciformes · · · Info · Definitions · Characters · · perciformes · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (noun) one of the largest natural groups of fishes of both marine and fresh water: true perches; basses; tuna. Synonyms: Perciformes, order Perciformes, Percomorphi, order Percomorphi. · · Noun Definition 1 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073