| vitamin | any of a group of organic substances essential in small quantities to normal metabolism |
|---|---|
| vitamin | any of several fat-soluble vitamins essential for normal vision |
| vitamin | an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene |
| vitamin | a viscous alcohol that is less active in mammals than is vitamin A1 |
| vitamin | originally thought to be a single vitamin but now separated into several B vitamins |
| vitamin | originally thought to be a single vitamin but now separated into several B vitamins |
| vitamin | a B vitamin that prevents beriberi |
| vitamin | a B vitamin that is used to treat pernicious anemia |
| vitamin | a B vitamin that prevents skin lesions and weight loss |
| vitamin | a B vitamin that is essential for metabolism of amino acids and starch |
| vitamin | a B vitamin that is essential for cell growth and reproduction |
| vitamin | a vitamin found in fresh fruits (especially citrus fruits) and vegetables |