jackknife-fish jackknife clam • jackleg · · · Info · Definitions · Synonyms · Characters · · jackknife-fish · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) black-and-white drumfish with an erect elongated dorsal fin. Synonyms: Equetus lanceolatus. · · Noun Definition 1 Synonyms · · · equetus lanceolatus · · Synonym 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 j latin small letter j U+006A k latin small letter k U+006B n latin small letter n U+006E s latin small letter s U+0073