Dictionary
bi•o•tin
Pronunciation: (bī'u-tin), [key]—
n. Biochem.
a crystalline, water-soluble vitamin, C
10H
16O
3N
2S, of the vitamin B complex, that is present in all living cells and functions as a growth factor and as a catalyst in carboxylation reactions. Also called
vitamin H. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.