vitamin A
(redirected from vitamin A A2)

Also found in: Dictionary/thesaurus, Medical, Wikipedia

0.01 sec.

vitamin A

also called retinol

Fat-soluble alcohol, most abundant in fatty fish and especially in fish-liver oils. It is not found in plants, but many vegetables and fruits contain beta-carotene (see carotene), which is readily converted in the body to vitamin A. It functions directly in vision, especially night vision. A derivative, retinaldehyde, is a component of the visual pigments, including rhodopsin, in the retina. Humans require vitamin A in very small amounts. Unlike carotenes, it is toxic in large amounts and is readily destroyed by exposure to heat, light, or air.

vitamin A [′vīd·ə·mən ¦ā]

(biochemistry)

C₂₀H₂₉OH A pale-yellow alcohol that is soluble in fat and insoluble in water; found in liver oils and carotenoids, and produced synthetically; it is a component of visual pigments and is essential for normal growth and maintenance of epithelial tissue. Also known as antiinfective vitamin; antixerophthalmic vitamin; retinol.

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.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			Vitalii Nikolaevich Goriaev Vitalii Nikolaevich Titov Vitalii Ozerov Vitalii Pavlovich Politseimako Vitalii Petrovich Ruben Vitalii Politseimako Vitalii Popkov Vitalii Primakov Vitalii Ruben Vitalii Ryzhkov Vitalii Semenovich Davydov Vitalii Sevastianov Vitalii Titov Vitalii Tsvirko Vitalii Valentinovich Bianki Vitalii Volskii Vitalii Zakrutkin Vitalii Zholobov Vitaliiiakovlevich Vilenkin Vitalism Vitality Vitallium vitamer vitamin vitamin A vitamin A A2 vitamin A aldehyde vitamin B complex vitamin B1 vitamin B12 vitamin B2 vitamin B2phosphate vitamin B3 vitamin B6 vitamin B6hydrochloride vitamin C vitamin D vitamin D3 Vitamin Deficiency vitamin E Vitamin Feeds vitamin G Vitamin Industry vitamin K vitamin K1 vitamin P vitamin P complex Vitamin Preparations Vitamin Therapy Vitamin-Bearing Plants Vitamins			Vitalograph Aerosol Inhalation Monitor vitalometer vitalometry vitals vitals Vitals, Oxygen, Monitor, IV, Transport vitamer vitamer vitamer vitameric vitameric vitameric vitamin vitamin vitamin vitamin vitamin A vitamin A vitamin A vitamin A 1 vitamin A 2 vitamin A A excess vitamin A A excess vitamin A A excess vitamin A A poisoning vitamin A A poisoning vitamin A A poisoning vitamin A A-responsive dermatosis vitamin A A-responsive dermatosis vitamin A A-responsive dermatosis vitamin A A2 vitamin A acid vitamin A acid vitamin A aldehyde vitamin A and D Vitamin A Binding Protein Vitamin A Capsule Vitamin A deficiency Vitamin A deficiency Vitamin A deficiency Vitamin A deficiency Vitamin A Deficiency Disorder Vitamin A Depletion/Repletion Vitamin A derivatives Vitamin A derivatives Vitamin A derivatives vitamin A embryopathy Vitamin A Excess Vitamin A Excess Vitamin A Excess Vitamin A poisoning Vitamin a solubilized Vitamin a solubilized Vitamin a solubilized vitamin A toxicity vitamin A, gingival hyperplasia in deficiency vitamin A, gingival hyperplasia in deficiency vitamin A, gingival hyperplasia in deficiency vitamin A, gingival hyperplasia in deficiency vitamin A, gingival hyperplasia in deficiency Vitamin A-Poor Lipocytes

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.

vitamin A (redirected from vitamin A A2)

vitamin A

vitamin A
(redirected from vitamin A A2)