# menadione

> English word · Noun · IPA /ˌmɛn.əˈdʌɪ.əʊn/

## Definitions
1. A synthetic yellow compound C₁₁H₈O₂ with the biological activity of natural vitamin K menaquinone, used to treat hemorrhage.

## Etymology
From me(thyl) + na(phthalene) + dione.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/menadione