| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 5,178,728,478 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
vitamin A |
Also found in: Medical, Encyclopedia, Wikipedia | 0.01 sec. |
|
|
vitamin A n (Chemistry / Elements & Compounds) a fat-soluble yellow unsaturated alcohol occurring in green and yellow vegetables (esp carrots), butter, egg yolk, and fish-liver oil (esp halibut oil). It is essential for the prevention of night blindness and the protection of epithelial tissue. Formula: C20H30O Also called vitamin A1 retinol vitamin A n. a yellow, fat-soluble terpene alcohol, C20H30O, obtained from carotene and occurring in green and yellow vegetables, egg yolk, etc.: essential to the protection of epithelial tissue and the prevention of night blindness. Also called vitamin A1, retinol. [1920–25] vitamin A2 n. a yellow oil, C20H28O, similar to vitamin A, obtained from fish liver.
Thesaurus Legend: Synonyms Related Words Antonyms
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|