vitamin K

noun

any of the fat-soluble vitamins, including phylloquinone and the menaquinones, which are essential for the normal clotting of blood

vitamin K

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.

Discover More

Example Sentences

And thousands of miles away, among ordinary young people in UK towns, ketamine – also known as special K, vitamin K, or kit kat - has also become fashionable.

From BBC

In that same cup, you get a huge hit towards your recommended daily amount of folate, vitamin A, manganese, vitamin K, copper, magnesium, calcium, zinc and iron.

From Salon

Coroner Lorna Skinner KC said he would not have died had he been given vitamin K, needed for blood clotting.

From BBC

One hypothesis is that the vitamin K plus potassium and magnesium may help with bone remineralization.

From Seattle Times

They help break down food and even create nutrients like vitamin K. Other bacteria are responsible for things like morning breath and cavities.

From National Geographic Kids

vitamin H vitamin K1

Browse