branchial cleft branchial arch • Branchiata · · · Info · Definitions · Synonyms · Characters · · branchial cleft · · Text Common · · Latin · · Scripts 15 · · Length 3 · · Syllables Definitions · · · (noun) one of a series of slit openings in the pharynxes of fishes and aquatic amphibians through which water passes. Synonyms: gill slit, branchial cleft, gill cleft. · · Noun Definition 1 Synonyms · · · gill slit · · Synonym 1 gill cleft · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 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 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074