vitamin k vitaminize • vitamin k1 · · · Info · Definitions · Synonyms · Characters · · vitamin k · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) a fat-soluble vitamin that helps in the clotting of blood. Synonyms: vitamin K, naphthoquinone, antihemorrhagic factor. · · Noun Definition 1 Synonyms · · · naphthoquinone · · Synonym 1 antihemorrhagic factor · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 i latin small letter i U+0069 k latin small letter k U+006B m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074 v latin small letter v U+0076