vitamin b vitamin a2 • vitamin b1 · · · Info · Definitions · Characters · · vitamin b · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) originally thought to be a single vitamin but now separated into several B vitamins. Synonyms: B-complex vitamin, B complex, vitamin B complex, vitamin B, B vitamin, B. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074 v latin small letter v U+0076