qui·​nine | \ ˈkwī-ˌnīn also ˈkwi- or kwi-ˈnīn or ki-ˈnēn or kwi-ˈnēn How to pronounce quinine (audio) \

Definition of quinine

1 : a bitter crystalline alkaloid C20H24N2O2 from cinchona bark used in medicine
2 : a salt of quinine used especially as an antipyretic, antimalarial, and bitter tonic

Examples of quinine in a Sentence

Recent Examples on the Web Officials have even said that Indian plantations could increase the growing capacity of cinchona trees, whose bark contains the compound quinine, which has been used to treat malaria since the 1860s. Washington Post, "Trump’s use of malaria drug likely to be welcomed in India," 19 May 2020 Uden couldn’t elaborate on the relative benefits of natural quinine. Bhuma Shrivastava, Bloomberg.com, "Trump’s Malaria Drug Push Boon for 160-Year-Old Plantation," 10 May 2020 Quinine was really the only anti-malarial drug at the time, and the Japanese conquered Indonesia, which was the Dutch East Indies at the time, and more or less cornered the market on quinine. Jake Nevins, New York Times, "The Imperative of Personal Sacrifice, Today and During World War II," 3 Apr. 2020 Chloroquine is a synthetic form of quinine, a centuries-old compound for malaria that is found in small amounts in products such as tonic water. Daniela Hernandez, WSJ, "Doctors Turn to Malaria Drugs as Potential Coronavirus Treatment," 20 Mar. 2020 Linda’s herbs + homeopathy, and lots of vitamins necessary for this time + non-toxic quinine (Cinchona Officialis—Peruvian Bark) to combat this oxygen-eating virus. Zee Krstic, Good Housekeeping, "Chris Cuomo's Wife Cristina Opens Up About His Condition Two Weeks After COVID-19 Diagnosis," 15 Apr. 2020 April 8, 2020 Physicians threw a slew of treatments at Ahrabi — including a controversial synthetic quinine used to treat malaria. Los Angeles Times, "New signs suggest coronavirus was in California far earlier than anyone knew," 11 Apr. 2020 Lifesaving vaccines and drugs such as quinine have been discovered in terrestrial rain forests. Brad King, WSJ, "Earth to Billionaires: Finding Life Is Space’s Final Frontier," 7 Feb. 2020 Distillers set up shop in the birthplace of the G and T GIN AND TONIC originated in India as a more palatable way for Victorian colonialists to down the bitter quinine that protected them against malaria. The Economist, "A new spirit Indian gin measures up," 24 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quinine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of quinine

1825, in the meaning defined at sense 1

History and Etymology for quinine

Spanish quina cinchona, from Quechua kina bark

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Time Traveler for quinine

Time Traveler

The first known use of quinine was in 1825

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Statistics for quinine

Last Updated

22 May 2020

Cite this Entry

“Quinine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quinine. Accessed 26 May. 2020.

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More Definitions for quinine


How to pronounce quinine (audio)

English Language Learners Definition of quinine

: a drug that is made from the bark of a tree and used especially to treat malaria


qui·​nine | \ ˈkwī-ˌnīn How to pronounce quinine (audio) \

Kids Definition of quinine

: a bitter drug obtained from cinchona bark and used to treat malaria


qui·​nine | \ ˈkwī-ˌnīn also ˈkwin-ˌīn, especially British kwin-ˈēn, ˈkwin-ēn \

Medical Definition of quinine

: a bitter crystalline alkaloid C20H24N2O2 obtained from cinchona bark that is used as a flavoring agent, has antipyretic and analgesic properties, and is administered orally in the form of its salts (as the hydrated sulfate (C20H24N2O2)2·H2SO4·2H2O) as an antimalarial

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More from Merriam-Webster on quinine

Rhyming Dictionary: Words that rhyme with quinine

Spanish Central: Translation of quinine

Nglish: Translation of quinine for Spanish Speakers

Britannica.com: Encyclopedia article about quinine

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