menaquinone
/ˌmenəkwɪˈnəʊn/noun
mass 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.【生化】甲基萘醌类。亦称vitamin K2.
词源
1940s: from the chemical name me（thyl）na（phtho）-quinone.