Definition of castor-oil plant
: a tropical Old World herb (Ricinus communis) widely grown as an ornamental or for its oil-rich castor beans
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First Known Use of castor-oil plant
1836
Medical Dictionary
castor-oil plant
medical Definition of castor-oil plant
: a tropical Old World herb of the genus Ricinus (R. communis) widely grown as an ornamental or for its oil-rich castor beans that are a source of castor oil
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Britannica.com: Encyclopedia article about castor-oil plant
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