bitter apple

bitter apple

noun
colocynth ( defs 1, 2 ).

Origin:
1860–65

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Collins
World English Dictionary
bitter apple
 
n
another name for colocynth

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

bitter apple

(Citrullus colocynthis), hairy-stemmed climbing vine, of the gourd family (Cucurbitaceae), native to the Mediterranean region. The colocynth has small, pale greenish yellow flowers, forked tendrils, hairy, deeply cut leaves, and rounded yellow or green fruits that have a bitter taste. The fruits yield a purgative and a derivative that is used against rodents.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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