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castor bean plant

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.10 sec.
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Noun1.castor bean plantcastor bean plant - large shrub of tropical Africa and Asia having large palmate leaves and spiny capsules containing seeds that are the source of castor oil and ricin; widely naturalized throughout the tropics
castor bean - the toxic seed of the castor-oil plant; source of castor oil
genus Ricinus, Ricinus - a genus of herb having only one known species: castor-oil plant
bush, shrub - a low woody perennial plant usually having several major stems


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Other ideas included moth balls, shoving finely crushed glass down the holes (ugh), planting a castor bean plant (its roots are supposedly poison to gophers), or sticking a couple of those lawn pinwheel figures by the holes because the gophers can't stand the vibrations they cause when spinning in the wind.
Inquiries were spurned by news reports linking the al Qaeda terrorist group to a northern Iraq laboratory suspected of producing ricin toxin, a byproduct of the widely available castor bean plant.
 
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