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quinine
7 dictionary results for: quinine
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
qui·nine 
[kwahy-nahyn, kwin-ahyn or, especially Brit., kwi-neen] Pronunciation Key
[kwahy-nahyn, kwin-ahyn or, especially Brit., kwi-neen] Pronunciation Key –noun Chemistry, Pharmacology.
| 1. | a white, bitter, slightly water-soluble alkaloid, C20H24N2O2, having needlelike crystals, obtained from cinchona bark: used in medicine chiefly in the treatment of resistant forms of malaria. |
| 2. | a salt of this alkaloid, esp. the sulfate. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| qui·nine
(kwī'nīn') Pronunciation Key
n.
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary - Cite This Source - Share This
quinine
quinine
1826, from Sp. quina "cinchona bark" (from which it is extracted), from Quechua (Peru) kina.
Online Etymology Dictionary, © 2001 Douglas Harper
WordNet - Cite This Source - Share This
| quinine | |
noun | |
| a bitter alkaloid extracted from chinchona bark; used in malaria therapy |
WordNet® 3.0, © 2006 by Princeton University.
The American Heritage Science Dictionary - Cite This Source - Share This
| quinine
(kwī'nīn') Pronunciation Key
A bitter-tasting, colorless drug derived from the bark of certain cinchona trees and used medicinally to treat malaria. For hundreds of years quinine was the only drug known to effectively combat malarial infection. It has since been largely replaced by synthetic compounds that not only relieve the symptoms of malaria but also rid the body of the malarial parasite, which quinine does not do. See Note at aspirin.
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The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
American Heritage Stedman's Medical Dictionary - Cite This Source - Share This
quinine qui·nine (kwī'nīn')
n.
- A bitter colorless amorphous powder or crystalline alkaloid derived from certain cinchona barks and used to treat malaria.
- Any of various compounds or salts of quinine.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Quinine
Qui"nine\, n. [F. (cf. Sp. quinina), fr. Sp. quina, or quinaquina, Peruvian bark, fr. Peruv. kina, quina, bark. Cf. Kinic.] (Chem.) An alkaloid extracted from the bark of several species of cinchona (esp. Cinchona Calisaya) as a bitter white crystalline substance, C20H24N2O2. Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc. [Written also chinine.]
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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