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Definition of "menadione" []

  • A yellow crystalline powder, C11H8O2, used in medicine as a vitamin K supplement. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "menadione" in a sentence
  • "The third tye of vitamin K, menadione, is not made in nature so is therefore manmade."
  • "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."
  • "Food and Drug Administration (FDA) does not allow vitamin K to be sold as a dietary supplement in its menadione form."