A vitamer of a particular vitamin is any of a number of chemical compounds, generally having a similar molecular structure, each of which shows vitamin-activity in a vitamin-deficient biological system. For instance, Vitamin A has at least six vitamer chemicals that all qualify as `vitamin A`, each with slightly different properties. In such a s.....
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http://en.wikipedia.org/wiki/Vitamer
One of two or more similar compounds capable of fulfilling a specific vitamin function in the body; e.g., niacin, niacinamide. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
(vi´tә-mәr) one of multiple related chemical compounds possessing a given vitamin activity.
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: vī′tă-mĕr Definitions: 1. One of two or more similar compounds capable of fulfilling a specific vitamin function in the body; niacin, niacinamide.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=99216
vitamer Any dietary factor or other substance that possesses the activity of a given vitamin or acts to counteract a vitamin deficiency; such as, carotenoid in human subjects. The primary known role of carotenoids is to act as a source of vitamin A in the diet and fruits and vegetables are the main sources of carotenoids in the human diet.
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http://www.wordinfo.info/words/index/info/view_unit/2313/4
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