The most common and most likely answer to this crossword clue is the 8 letter word CINCHONA
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More clues leading to the result CINCHONA
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The cryptic/wordplay part
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What does CINCHONA mean?
CINCHONA noun- A tree or shrub of the genus Cinchona, native to the Andes in South America but since widely cultivated in Indonesia and India as well for its medicinal bark.
- The bark of these plants, which yield quinine and other alkaloids useful in reducing fevers and particularly in combatting malaria.
- Any medicine chiefly composed of the prepared bark of these plants.