Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


A synthetic compound, C11H8O2, obtained by oxidation of 2-methylnaphthalene, that is converted in the body to vitamin K2 and is used as an additive in animal feed. Also called vitamin K3.


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


(ˌmɛn əˈdaɪ oʊn)

a synthetic yellow crystalline powder, C11H8O2, insoluble in water, used as a vitamin K supplement. Also called vitamin K 3.
[1940–45; me (thyl) + na (phthalene) + di-1 + -one]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.menadione - a form of vitamin K
antihemorrhagic factor, naphthoquinone, vitamin K - a fat-soluble vitamin that helps in the clotting of blood
References in periodicals archive ?
7's), menadione vit k) 1 ml ampule 10 mg, ketamine hcl 100 mg/2 ml vial, chlorpheniramine maleate + phenylephrine + paracetamol tab, rabeprazole 20 mg tab
015; ascorbic acid, 240; D-L-[alpha]-tocopherol, 51; menadione, 12; nicotinic acid, 30; para-amino-benzoic acid, 15; folic acid, 1.
600 mg; pyridoxine HCl, 100 mg: riboflavin, 120 mg: thiamin HCl, 50 mg; folic acid, 13 mg; cyanocobalamin, 1 mg; menadione bisulfite, 60 mg; choline chloride 2000 mg.
29 (1) Provided per kilogram of complete diet: retinyl acetate, 4,000 IU; cholecalciferol, 880 IU; dl-[alpha]-tocopheryl acetate, 50 IU; menadione sodium bisulfate complex, 4.
An improved MTT assay using the electron-coupling agent menadione.
Ethamsylate 125 Mg, Inj Menadione Sodium Bisulphate 10 Mg, Inj.
83 (a) Premix provided per kilogram of diet: transretinyl acetate, 24 mg; cholecalciferol, 6 mg; all-rac-[alpha]-tocopherol acetate, 20 mg; menadione, 1.
Tenders are invited for Supply of Menadione sodium bisulphite injection
1) Premix provided per kg of diet: vitamin A (transretinyl acetate), 12,000 IU; vitamin D3 (cholecalciferol), 2,500 IU; vitamin E (DL-[alpha]-tocopheryl acetate), 30 mg; menadione sodium bisulphite, 2.
Infant Face Mask, Iron Folic Acid-(Syrup), Ketamine 10ml, Leucoplast, Lignocaine inj, Low Pressure Electrics Suction Machine, Menadione (Vitamin K3)lml,