jatropha

World English Dictionary
jatropha (ˈdʒætrəfə) [Click for IPA pronunciation guide]
 
n
any plant of the genus Jatropha, esp the poisonous shrub Jatropha curcas, originating in Central America but also found in Asia and Africa; used mainly as a component for biofuel
 
[from Greek iatros physician + trophē nourishment]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

jatropha

(genus Jatropha), member of the spurge family (Euphorbiaceae), native in both New World and Old World tropics and containing about 175 species of milky-juiced herbs, shrubs, and trees, some useful for their oils or as ornamental plants in tropical gardens.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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00:10
Jatropha is always a great word to know.
So is ninnyhammer. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a fool or simpleton; ninny.
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