menaquinone
Syllabification: (men·a·qui·none)
Pronunciation: /ˌmenəˈkwinˌōn, -ˈkwīˌnōn/
Definition of menaquinone
noun
Biochemistry- one of the K vitamins, a compound produced by bacteria in the large intestine and essential for the blood-clotting process. It is an isoprenoid derivative of menadione. Also called vitamin K2 (see vitamin K).
Origin:
1940s: from the chemical name me(thyl)-na(phtho)quinone