n.
A substance that destroys or inhibits the metabolic action of a vitamin.
antivitamin
| Dictionary: an·ti·vi·ta·min |
(ăn'tē-vī'tə-mĭn, ăn'tī-)
n.
A substance that destroys or inhibits the metabolic action of a vitamin.
n.
A substance that destroys or inhibits the metabolic action of a vitamin.
| 5min Related Video: antivitamin |
| Food and Nutrition: antivitamins |
Substances that interfere with the normal metabolism or function of vitamins, or destroy them. Dicoumarol in spoiled sweet clover antagonizes the function of vitamin K, thiaminase in raw fish destroys vitamin B1, the drug methotrexate antagonizes folic acid metabolism (this is part of its mechanism of action in treating cancer), the drug isoniazid antagonizes the action of vitamin B6.
| Medical Dictionary: an·ti·vi·ta·min |
(ăn'tē-vī'tə-mĭn, ăn'tī-)
n.
n.
A substance that prevents a vitamin from exerting its typical metabolic effects.
| Veterinary Dictionary: antivitamin |
A substance that inactivates or inhibits the normal functioning of a vitamin.
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Food and Nutrition. A Dictionary of Food and Nutrition. Copyright © 1995, 2003, 2005 by A. E. Bender and D. A. Bender. All rights reserved. Read more |
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| Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
