Standard Lemma guide

naphthoquinone

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

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

2

noun

Meaning 2

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

History

Etymology

No etymology was provided for this word.