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WordReference Random House Unabridged Dictionary of American English © 2024phys′ic nut′, - Plant Biologyan ornamental, tropical American tree, Jatropha curcas, of the spurge family, having ivylike leaves, small, yellow or greenish-yellow flowers, and olive-shaped fruit yielding a purgative, poisonous oil.
- Plant Biologythe fruit itself. Also called Barbados nut, purging nut.
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