Dictionary.com
Thesaurus.com

chloroquine

American  
[klawr-uh-kwin, -kween, klohr-] / ˈklɔr ə kwɪn, -ˌkwin, ˈkloʊr- /

noun

Pharmacology.
  1. a synthetic substance, C 18 H 26 ClN 3 , used chiefly to control malaria attacks.


chloroquine British  
/ ˈklɔːrəʊˌkwiːn /

noun

  1. a synthetic drug administered orally to treat malaria. Formula: C 18 H 26 ClN 3

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of chloroquine

First recorded in 1945–50; chloro- 2 + quin(olin)e

Compare meaning

How does chloroquine compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The parasite became resistant to a previous drug - chloroquine - in East Africa in the 1970s, and resistance reached the west coast by the 1980s.

From BBC • Jul. 18, 2024

In Southeast Asia, Africa, and South America, P. falciparum has developed resistance to the anti-malarial drugs chloroquine, mefloquine, and sulfadoxine-pyrimethamine.

From Textbooks • Jun. 9, 2022

Most treatments, including chloroquine, are directed at the blood stage of the parasite, and so cannot prevent recurrence of the infection and its associated symptoms.

From New York Times • Mar. 14, 2022

Haunted by the failure of chloroquine, though, researchers have remained on the lookout for signs that the malaria parasite is evolving to resist artemisinin or its partner drugs.

From Salon • Jan. 30, 2022

She had gotten her chloroquine injections there the last time she had malaria, and the nurse had boiled water on a smoky kerosene stove.

From "Purple Hibiscus" by Chimamanda Ngozi Adichie