Meaning | Any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes. |
---|
Synonyms | antiophthalmic factor, axerophthol, A |
---|
Narrower | vitamin A1, retinol | An unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene |
---|
vitamin A2, dehydroretinol | A viscous alcohol that is less active in mammals than is vitamin A1 |
Broader | fat-soluble vitamin | Any vitamin that is soluble in fats |
---|
Spanish | retinol, vitamina A |
---|
Catalan | vitamina A |
---|