Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An alkaloid, C19H22N2O, derived from the bark of various cinchona trees and used as an antimalarial agent.
from The Century Dictionary.
- noun An alkaloid (C19H22N2O) obtained from the bark of several species of Cinchona.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) One of the quinine group of alkaloids isomeric with and resembling cinchonidine; -- called also
cinchonia .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry An
alkaloid , obtained from the bark ofcinchona trees, that is used as anantimalarial agent.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an alkaloid derivative of the bark of cinchona trees that is used as an antimalarial drug
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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~ -- Picric acid forms insoluble salts with many of the alkaloids, and picric acid may be determined in the following manner: -- To the solution of picric acid, or a picrate, add a solution of sulphate of cinchonine acidulated with H_ {2} SO_ {4}.
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When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series.
Scientific American Supplement, No. 415, December 15, 1883 Various
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_Cinchonidine_, when heated with potassium hydrate, yields quinoline also, and with nitric acid the same products as cinchonine.
Scientific American Supplement, No. 415, December 15, 1883 Various
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When cinchonine is treated with potassium hydrate, it is decomposed into quinoline and a solid body, which on further treatment yields a liquid base,
Scientific American Supplement, No. 415, December 15, 1883 Various
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Dr. Farr detected a considerable amount of cinchonine in it, but was prevented from completing his examination.
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It is stated that incomplete examinations have detected _cinchonine_ in the bark.
Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture William Saunders 1861
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Their great value depends upon the presence of certain alkaloid substances called quinine, cinchonine, and quinidine, which exist in the bark in combination with tannic and other acids.
Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture William Saunders 1861
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The gray bark of Huanuco is derived from _Cinchona micrantha_, which is characterized by its yield of cinchonine, and the Loxa or Loja barks are furnished in part by _Cinchona officinalis_, and are especially rich in quinidine.
Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture William Saunders 1861
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The true cinchona barks, containing quinine, quinidine, and cinchonine, are distinguished from the false by their splintery-fibrous texture, the latter being pre-eminently corky.
The Andes and the Amazon Across the Continent of South America James Orton 1853
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For example, cinchonine and quinine both afford the basic quinoline under certain conditions, but on oxidation of cinchonine, an acid -- cinchoninic acid (C_ {10} H_ {7} NO_ {2}) -- is the principal body formed, while in the case of quinine, quininic acid (C_ {10} H_ {9} NO_ {3}) is the principal product.
Scientific American Supplement, No. 623, December 10, 1887 Various
chained_bear commented on the word cinchonine
Usage note in comment on quinine.
October 4, 2017