¹ Source: wiktionary.com
Medical Definition of Vitamin K2
1. Hexaprenylmenaquinone; prenylmenaquinone-6; 2-methyl-3-hexaprenyl-1,4-naphthoquinone;isolated from putrified fish meal; potency is about 60% of that of phylloquinone (vitamin K1). Synonym: farnoquinone, vitamin K2, vitamin K2(30). (05 Mar 2000)