from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bitter, colorless, amorphous powder or crystalline alkaloid, C20H24N2O2·3H2O, derived from certain cinchona barks and used in medicine to treat malaria.
- n. Any of various compounds or salts of quinine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A bitter colourless powder, an alkaloid derived from cinchona bark, used to treat malaria and as an ingredient of tonic water.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. A very important vegetable alkali (C20H24N2O2), obtained from the bark of several trees of the genus Cinchona.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bitter alkaloid extracted from chinchona bark; used in malaria therapy
Many men indulge in what we call the quinine habit.
For example, the FDA ordered a number of manufacturers to stop marketing unapproved drugs that contain quinine, which is often used to treat leg cramps.
In the 1790s, Hahnemann undertook an experiment with Peruvian bark, the source of quinine, which is now used to treat malaria.
But she had no idea whether it was even called quinine here, or how it was administered.
The experiment was successful and so many trees were afterward planted that Java now furnishes about half the world's supply of quinine, which is extracted from the bark of the tree.
This infection often resists all human therapeutic measures, and is even aggravated by the use of quinine, which is given during the recurrent paroxysms of fever.
I hesitate to advise this, because I fear to induce any one to abandon quinine, which is the great weapon against malaria, and not from any want of faith in Dr. Plehn, for he has studied malarial fevers in Cameroon with the greatest energy and devotion, bringing to bear on the subject a sound German mind trained in a German way, and than this, for such subjects, no better thing exists.
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.
The fashionable sulphate of quinine, which is most extensively used, I consider the most objectionable form of the drug.
"Ah! that is the reason it is called quinine by the English," observed