What does "menaquinone" mean?

A pale yellow crystalline naphthoquinone C₄₁H₅₆O₂ that is obtained especially from putrefied fish meal and produced by bacteria in the large intestine and essential for the blood-clotting process. It is much more unsaturated than vitamin K₁ and slightly less active biologically, and is an isoprenoid derivative of menadione.

What is a synonym for "menaquinone"?

Common synonyms include: menatetrenone, vitamin k2.

How do you pronounce "menaquinone"?

Pronounced //ˌmɛn.əˈkwɪn.əʊn//.

Menaquinone

//ˌmɛn.əˈkwɪn.əʊn// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A pale yellow crystalline naphthoquinone C₄₁H₅₆O₂ that is obtained especially from putrefied fish meal and produced by bacteria in the large intestine and essential for the blood-clotting process. It is much more unsaturated than vitamin K₁ and slightly less active biologically, and is an isoprenoid derivative of menadione.

Synonyms

All synonyms

menatetrenone vitamin k2

Etymology

From me(thyl) + na(phtho)quinone.

Related phrases

vitamin k vitamin k2

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.