Definition of vitamin K in English:

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vitamin K

noun

Any of a group of vitamins found mainly in green leaves and essential for the blood-clotting process. They include phylloquinone ( vitamin K1), menaquinone ( vitamin K2), and menadione ( vitamin K3).
Example sentences
  • It interferes with the body's natural chemical process of clotting, by targeting an essential substance called vitamin K.
  • Selecting products with selected other nutrients such as vitamin D and vitamin K was discussed.
  • One such product is vitamin K, a substance essential for blood clotting.

For editors and proofreaders

Syllabification: vi·ta·min K

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