Atherinidae atherinidae • atherinopsis · · · Info · Definitions · Characters · · Atherinidae · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (noun) small spiny-finned fishes of both salt and fresh water. Synonyms: family Atherinidae. · · Noun Definition 1 Characters · · A latin capital letter a U+0041 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074