vitamin k1

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WORDNET DICTIONARY

Noun vitamin k1 has 1 sense

vitamin k1(n = noun.substance) phylloquinone, phytonadione - a form of vitamin K;

is a kind of antihemorrhagic factor, naphthoquinone, vitamin k

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CIDE DICTIONARY

vitamin k1, n.

one of the two K vitamins, (C31H46O2). It is fat-soluble and occurs naturally as the trans isomer. Chemically it is 2-methyl-3-phytyl-1,4,-naphthoquinone. [WordNet 1.5]