| 释义 |
cinchona
noun
uk /sɪnˈtʃəʊ.nə/ us /sɪnˈtʃoʊ.nə/
[ C or U ](alsocinchona tree)
any tree or bush from the South American cinchona genus(= group of related plants), often grown for its bark(= outer covering):
Some villagers have small plots of cinnamon, cinchona, and sesame.
European governments possessing colonies with climates adapted for the growth of the cinchonas worked to obtain supplies of seeds and plants of the best species.
Peruvian natives found that if they drank from water close to cinchona trees, their fever would be eased.
[ U ](alsocinchona bark)
the bark of a cinchona tree or bush that is used as medicine:
Cinchona bark was the first effective treatment for malaria.
Cinchona is the chief remedy for anaemia resulting from loss of fluids, as in haemorrhage.
French chemists extracted quinine, the active alkaloid in cinchona, in 1820.
Cinchona is a genus of about 25 species in the family Rubiaceae, native to tropical South America.
Vitamin C was originally extracted from fruits, quinine from cinchona bark, and aspirin from willows.
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Medicines & drugs
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