balaenoptera borealis balaenoptera acutorostrata • balaenoptera musculus · · · Info · Definitions · Synonyms · Characters · · balaenoptera borealis · · Text Common · · Latin · · Scripts 21 · · Length 8 · · Syllables Definitions · · · (noun) similar to but smaller than the finback whale. Synonyms: sei whale, Balaenoptera borealis. · · Noun Definition 1 Synonyms · · · sei whale · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E 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 t latin small letter t U+0074