codeine

noun

co·​deine ˈkō-ˌdēn How to pronounce codeine (audio)
: a morphine derivative C18H21NO3·H2O that is found in opium, is weaker in action than morphine, and is used especially as an analgesic and antitussive

Examples of codeine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Texas State University has launched a no-cost Narcan distribution program for students, faculty and staff to access the naloxone nasal spray — a life-saving medication that can quickly counter overdose effects from opioid drugs such as heroin, morphine, codeine, fentanyl and oxycodone. Lily Kepner, Austin American-Statesman, 22 Nov. 2024 Marijuana being classified as a Schedule III drug means it would be classified alongside drugs including ketamine, testosterone, anabolic steroids and Tylenol with codeine, USA TODAY reports. Jordan Green, Memphis Commercial Appeal, 30 Apr. 2024 Eventually, Horton found out that her urine came back positive for codeine — an opioid pain reliever typically used in cough medicine. Summer Lin, Los Angeles Times, 5 Oct. 2024 Here are some examples of Schedule III drugs: Products containing less than 90 milligrams of codeine per dosage unit (Tylenol with codeine) ketamine anabolic steroids testosterone Is marijuana legal in Tennessee? Joyce Orlando, The Tennessean, 1 May 2024 See All Example Sentences for codeine

Word History

Etymology

borrowed from French codéine, from Greek kṓdeia "seed capsule of a poppy plant" (probably of pre-Greek substratal origin) + -ine -ine;2

Note: The name was introduced by the French chemist Pierre Jean Robiquet (1780-1840) in "Nouvelles Observations sur les principaux Produits de l'Opium," Annales de chemie et de physique, tome 51 (1832), p. 264.

First Known Use

1833, in the meaning defined above

Time Traveler
The first known use of codeine was in 1833

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Cite this Entry

“Codeine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/codeine. Accessed 29 Mar. 2025.

Kids Definition

codeine

noun
co·​deine ˈkō-ˌdēn How to pronounce codeine (audio)
ˈkōd-ē-ən
: a drug that is obtained from opium, is weaker than morphine, and is used as a pain reliever and in cough remedies

Medical Definition

codeine

noun
: a morphine derivative that is found in opium, is weaker in action than morphine, and is used chiefly in the form of its sulfate (C18H21NO3)2·H2SO4 or phosphate C18H21NO3·H3PO4 especially as a pain reliever and cough suppressant
Although codeine is potentially addicting, it rarely causes physical dependence when taken orally for a short time.Consumer Reports

More from Merriam-Webster on codeine

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