vitamin b complex

from WordNet (r) 3.0 (2006)

vitamin B complex
    n 1: originally thought to be a single vitamin but now separated
         into several B vitamins [syn: {B-complex vitamin}, {B
         complex}, {vitamin B complex}, {vitamin B}, {B vitamin},
         {B}]

from The Collaborative International Dictionary of English v.0.48

vitamin B complex \vitamin B complex\ n.
   a mixture of water-soluble vitamins originally thought to be
   a single vitamin but now known to be a mixture of several
   compounds with vitaminic activity.

   Syn: B complex, vitamin B complex, vitamin B, B vitamin.
        [WordNet 1.5]