Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A synthetic vitamin K derivative that is a yellow crystalline powder, C11H8O2, used as a vitamin K supplement.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry a derivative of naphthoquinone that is a constituent of vitamin K

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a form of vitamin K

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[me(thyl) + na(phthalene) + di– + –one.]

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Examples

  • EU and Japan USPTO issues Notice of Allowance for menadione to prevent skin rash in patients taking EGFR inhibitors Premier Purchasing Partners announces new agreements for orthopedic power tools and accessories Kaiser Permanente to deploy solar power systems at 15 facilities across the state New cakes and frostings may someday contain less fat and calories

    THE MEDICAL NEWS Editors 2010

  • EU and Japan USPTO issues Notice of Allowance for menadione to prevent skin rash in patients taking EGFR inhibitors Premier Purchasing Partners announces new agreements for orthopedic power tools and accessories Kaiser Permanente to deploy solar power systems at 15 facilities across the state New cakes and frostings may someday contain less fat and calories

    THE MEDICAL NEWS Editors 2010

  • While this form of vitamin K can sometimes be converted by the body into non-toxic forms, research studies have shown unwanted risk stemming from intake of menadione.

    The World's Healthiest Foods 2010

  • EU and Japan USPTO issues Notice of Allowance for menadione to prevent skin rash in patients taking EGFR inhibitors Premier Purchasing Partners announces new agreements for orthopedic power tools and accessories Kaiser Permanente to deploy solar power systems at 15 facilities across the state New cakes and frostings may someday contain less fat and calories

    THE MEDICAL NEWS Editors 2010

  • One important exception to these toxicity results involves a synthetic form of vitamin K called menadione.

    The World's Healthiest Foods 2010

  • One important exception to these toxicity results involves a synthetic form of vitamin K called menadione.

    The World's Healthiest Foods 2010

  • While this form of vitamin K can sometimes be converted by the body into non-toxic forms, research studies have shown unwanted risk stemming from intake of menadione.

    The World's Healthiest Foods 2010

  • The third tye of vitamin K, menadione, is not made in nature so is therefore manmade.

    CreationWiki - Recent changes [en] Purdy 2010

  • Food and Drug Administration (FDA) does not allow vitamin K to be sold as a dietary supplement in its menadione form.

    The World's Healthiest Foods 2010

  • Food and Drug Administration (FDA) does not allow vitamin K to be sold as a dietary supplement in its menadione form.

    The World's Healthiest Foods 2010

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