menadione

menadione

[men-uh-dahy-ohn]
noun Pharmacology.
a synthetic yellow crystalline powder, C 1 1 H 8 O 2 , insoluble in water, used as a vitamin K supplement.
Also called vitamin K3.


Origin:
1940–45; me(thyl) + na(phthalene) + di-1 + -one

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Collins
World English Dictionary
menadione (ˌmɛnəˈdaɪəʊn)
 
n
Also: vitamin K3 a yellow crystalline compound used in fungicides and as an additive to animal feeds. Formula: C11H8O2
 
[C20: from me(thyl) + na(phtha) + di-1 + -one]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

menadione men·a·di·one (měn'ə-dī'ōn')
n.
A synthetic vitamin K derivative occurring as a yellow crystalline powder and used as a vitamin K supplement.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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