vitamin h(n = noun.substance) biotin - a B vitamin that aids in body growth;
is a kind of b, b-complex vitamin, b complex, b vitamin, vitamin b, vitamin b complex

   a B vitamin that aids in body growth. [WordNet 1.5]

b vitamin, b-complex vitamin, big h, fat-soluble vitamin, h, h bomb, letter h, vitamin, vitamin a, vitamin a1, vitamin a2, vitamin b, vitamin b complex, vitamin b1, vitamin b12, vitamin b2, vitamin b3, vitamin b5, vitamin b6, vitamin bc, vitamin c, vitamin d, vitamin deficiency, vitamin e, vitamin g, vitamin k, vitamin k1, vitamin k2, vitamin k3, vitamin m, vitamin p, vitamin pill, water-soluble vitamin