naphthoquinone

Từ điển Oxford Learners Wordfinder Dictionary

noun

a fat-soluble vitamin that helps in the clotting of blood
• Syn:
vitamin K, antihemorrhagic factor
• Hypernyms:
fat-soluble vitamin
• Hyponyms:
vitamin K1, phylloquinone, phytonadione, vitamin K3, menadione