Search Result for "vitamin k":
Wordnet 3.0

NOUN (1)

1. a fat-soluble vitamin that helps in the clotting of blood;
[syn: vitamin K, naphthoquinone, antihemorrhagic factor]



The Collaborative International Dictionary of English v.0.48:

vitamin K \vitamin K\ n. (1929) [from G. Koagulationsvitamin.]
   either of two fat-soluble vitamins (vitamin K1 or vitamin K2)
   that help clot blood by participating in the fromation of
   prothrombin.

   Syn: naphthoquinone.
        [WordNet 1.5 +PJC]