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.
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Pronunciation
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A drug derived from quinolone that is taken orally in the form of its sulfate C18H26ClN3O·H2SO4 to treat malaria, rheumatoid arthritis, and lupus erythematosus.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, pharmacology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
anti-inflammatory drug (trade name Plaquenil) used in the treatment of rheumatoid arthritis and malaria and lupus erythematosus
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: Plaquenil
Antonyms: none provided
Broader terms: anti-inflammatory, anti-inflammatory drug
History
Etymology
From hydroxy- + chloroquine.
Across languages
Translations
8 source translations are retained for this English entry.
Catalan:
hidroxicloroquina
— quinoline drug
Chinese Mandarin:
羥氯喹 /羟氯喹
(qiǎnglǜkuí)
— quinoline drug