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vitamin K

noun

  1. any of the fat-soluble vitamins, including phylloquinone and the menaquinones, which are essential for the normal clotting of blood
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


vitamin K

  1. Any of a group of fat-soluble vitamins that are involved in the formation of prothrombin and other clotting factors in the liver and are essential for normal clotting of the blood. (The K is derived from the German word koagulation. ) Vitamin K is also involved in bone formation and repair. Two forms occur naturally: vitamin K 1 , which is synthesized by plants, and vitamin K 2 , which is mainly synthesized by intestinal bacteria. The other forms are synthetic substances with similar chemical structures.


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Example Sentences

At 96 percent water, cukes have no saturated fat or cholesterol, and are very high in vitamin K, vitamin B6 and iron.

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