phytonadione

Definitions of phytonadione
  1. noun
    a form of vitamin K
    synonyms: phylloquinone, vitamin K1
    see moresee less
    type of:
    antihemorrhagic factor, naphthoquinone, vitamin K
    a fat-soluble vitamin that helps in the clotting of blood
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week