vitamins K2
vitamin K2 vitamin K2, vitamins K2 vitamins K2 . one of the two K vitamins, actually a mixture of homologous fat-soluble substituted naphthoquinones (called {menaquinones}), ({C11H7O2[C5H8]nH}), where n may be 1 to 13 but is mostly 7 to 9. The term is also used for synthetic compounds resembling vitamin K2 and having the same physiological action. The individual components of vitamin K2 are also referred to by the number of isoprenyl units in the side chain (the number n in the formula), as for menadione, having no units at that position of the naphthaquinone ring, and also called vitamin K2(0) (and also called {vitamin K3}). --[MI11]

Syn: menaquinones, antihemorrhagic vitamin.. [WordNet 1.5 +PJC]


The Collaborative International Dictionary of English. 2000.

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  • vitamin K2 — vitamin K2, vitamins K2 vitamins K2 . one of the two K vitamins, actually a mixture of homologous fat soluble substituted naphthoquinones (called {menaquinones}), ({C11H7O2[C5H8]nH}), where n may be 1 to 13 but is mostly 7 to 9. The term is also… …   The Collaborative International Dictionary of English

  • Vitamin K — has also been used as a slang term for ketamine, an unrelated anaesthetic. Vitamin K1 (phylloquinone). Both forms of the vitamin contain a functional naphthoquinone ring and an aliphatic side chain. Phylloquinone has a phytyl side chain …   Wikipedia

  • Osteoporosis — Classification and external resources A stooped back is often the result of osteoporosis. ICD 10 M …   Wikipedia

  • C11H7O2C5H8nH — vitamin K2 vitamin K2, vitamins K2 vitamins K2 . one of the two K vitamins, actually a mixture of homologous fat soluble substituted naphthoquinones (called {menaquinones}), ({C11H7O2[C5H8]nH}), where n may be 1 to 13 but is mostly 7 to 9. The… …   The Collaborative International Dictionary of English

  • menaquinones — vitamin K2 vitamin K2, vitamins K2 vitamins K2 . one of the two K vitamins, actually a mixture of homologous fat soluble substituted naphthoquinones (called {menaquinones}), ({C11H7O2[C5H8]nH}), where n may be 1 to 13 but is mostly 7 to 9. The… …   The Collaborative International Dictionary of English

  • menaquinone — The class name for a series of 2 methyl 3 all trans polyprenyl) 1,4 naphthoquinones (vitamins K2). * * * men·a·quin·one .men ə kwin .ōn n VITAMIN K (1b) also a synthetic derivative of vitamin K2 * * * men·a·quin·one (men″ə… …   Medical dictionary

  • menadione — The root of compounds that are 3 multiprenyl derivatives of m. and known as the menaquinones or vitamins K2. SYN: menaphthone, vitamin K3. m. reductase SYN: NADPH dehydrogenase (quinone). m. sodium bisulfite it possesses the same action and is… …   Medical dictionary

  • vitamin — vitaminic, adj. /vuy teuh min/; Brit. also /vit euh min/, n. any of a group of organic substances essential in small quantities to normal metabolism, found in minute amounts in natural foodstuffs or sometimes produced synthetically: deficiencies… …   Universalium

  • Витамин K — Витамин K1 (филлохинон). Содержит функциональное нафтохиноновое кольцо и алифатическую боковую цепь. Филлохинон имеет фитил в боковой цепи. В …   Википедия

  • Vitamin K — One of two naturally occurring fat soluble vitamins (vitamin K1 and vitamin K2) needed for the clotting of blood because of an essential role in the production of prothrombin (a clotting factor). The term vitamin A may also refer to a synthetic… …   Medical dictionary

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