A synthetic vitamin K derivative that is a yellow crystalline powder, C11 H8 O2 , used as a vitamin K supplement.
A yellow, crystalline powder, C11H8O2, possessing vitamin K activity and used in medicine.
A synthetic compound, C11 H8 O2 , obtained by oxidation of 2-methylnaphthalene, that is converted in the body to vitamin K2 and is used as an additive in animal feed.
Origin of menadione
- me(thyl) na(phthalene) di– –one
From American Heritage Dictionary of the English Language, 5th Edition