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/ˌmɛn.əˈdʌɪ.əʊn/ · noun
(pharmacology) A synthetic yellow compound C₁₁H₈O₂ with the biological activity of natural vitamin K menaquinone, used to treat hemorrhage..
Use menadione when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Menadione means (pharmacology) A synthetic yellow compound C₁₁H₈O₂ with the biological activity of natural vitamin K menaquinone, used to treat hemorrhage..
Common synonyms include vitamin k3.
The opposite depends on the specific sense.
Use menadione where its definition matches the intended context.
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