The Collaborative International Dictionary
vitamin H \vitamin H\ n., a B vitamin that aids in body growth.
Syn: biotin.
biotin \bi"o*tin\ n. a B vitamin ( C10H16N2O3S) that aids in body growth; -- called also vitamin H and coenzyme R. It functions as a coenzyme in many carboxylation reactions.
Note: Biotin binds tightly to the substance avidin, found in
raw egg-whites. Rats or chick on a diet high in raw
egg-white may develop skin lesions and retarded growth,
which can be prevented by adding biotin to the diet.
--[MI11]
Syn: .
Wiktionary
n. An alternative name for vitamin B7 or biotin.
WordNet
n. a B vitamin that aids in body growth [syn: biotin]
Usage examples of "vitamin h".
The only two vitamins it doesn't have in it are vitamin S, because it makes you sick, and vitamin H, because it makes you grow horns on the top of your head, like a bull.