Meanings
nounmenadione (countable and uncountable, plural menadiones)
plural menadiones
- countableuncountablemedicineA synthetic yellow compound C₁₁H₈O₂ with the biological activity of natural vitamin K menaquinone, used to treat hemorrhage.
Synonyms & antonyms
nouna synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position
Similar
vitamin K3
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Proto-Indo-European*médʰu
- Proto-Hellenic*métʰu
- Ancient Greekμέθυ (méthu)
- Proto-Indo-European*swel-der.?
- Ancient Greekῡ̔́λη (hū́lē)
- GermanMethy
- Englishme(thyl)
- Akkadiannapṭumbor.?
- Old Persian*naftah
- Ancient Greekνάφθα (náphtha)
- Latinnaphtha
- Englishnaphth(a)
- Englishna(phthalene)
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*dwi-
- Proto-Hellenic*dwi-
- Ancient Greekδῐ- (dĭ-)
- Latindi-
- Englishdi-
- GermanKeton
- Englishketone
- Englishdione
- Englishmenadione
From me(thyl) + na(phthalene) + dione.
Full word history & related roots →Rhymes & wordplay
Anagrams
Cite this entry
APA
menadione. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/menadione
MLA
“menadione.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/menadione. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “menadione,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/menadione.
Source: menadione on Wiktionary, CC BY-SA 4.0.