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[koh-deen] /ˈkoʊ din/
noun, Pharmacology
a white, crystalline, slightly bitter alkaloid, C 18 H 21 NO 3 , obtained from opium, used in medicine chiefly as an analgesic or sedative and to inhibit coughing.
Also, codeia
[koh-dee-uh] /koʊˈdi ə/ (Show IPA),
[koh-dee-ee-nuh] /ˌkoʊ diˈi nə/ (Show IPA)
Origin of codeine
1830-40; < Greek kṓde(ia) head, poppy-head + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for codeine
  • They began licensing poppy cultivation for the purpose of producing morphine, codeine, and other legal opiates.
  • For millennia, humans have used the codeine and morphine of the poppy plant as painkillers-or recreational drugs.
  • For severe pain, codeine or another stronger pain reliever may be prescribed.
  • Some children, however, may need codeine or other powerful pain relievers.
  • Older children may be able to take prescription pain relievers that contain codeine if the pain is severe.
  • Opioids refer to synthetically produced substances that have the same effect as morphine or codeine.
  • Opiates, such as morphine and codeine, are derived from natural opium.
  • Numerous codeine salts have been prepared since the drug was discovered.
British Dictionary definitions for codeine


a white crystalline alkaloid prepared mainly from morphine and having a similar but milder action. It is used as an analgesic, an antidiarrhoeal, and to relieve coughing. Formula: C18H21NO3
Word Origin
C19: from Greek kōdeia head of a poppy, from kōos hollow place + -ine²
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
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Word Origin and History for codeine

alkaloid present in opium, 1838, from French codéine, coined, with chemical suffix -ine (2), from Greek kodeia "poppy head," related to kooz "prison," literally "hollow place;" kodon "bell, mouth of a trumpet;" koilos "hollow," from PIE root *kel- (see cell). Originally codeina; modern form is from 1881.

Online Etymology Dictionary, © 2010 Douglas Harper
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codeine in Medicine

codeine co·deine (kō'dēn', -dē-ĭn)
An alkaloid narcotic derived from opium or morphine and used as a cough suppressant, analgesic, and hypnotic. Also called methylmorphine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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codeine in Science
An alkaloid narcotic derived from opium or morphine and used primarily as an analgesic and a cough suppressant. Chemical formula: C18H21NO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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codeine in Culture
codeine [(koh-deen)]

A drug obtained from opium or morphine that is used as a pain reliever and cough remedy.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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