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Either of two isomers of polycyclic aromatic ketones derived from naphthalene.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
a fat-soluble vitamin that helps in the clotting of blood
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: vitamin K, antihemorrhagic factor
Antonyms: none provided
Broader terms: fat-soluble vitamin
Narrower terms: vitamin K1, phylloquinone, phytonadione, vitamin K3, menadione
No etymology was provided for this word.