Dictionary

castor-oil plant

castor–oil plant

noun

Definition of CASTOR-OIL PLANT

:  a tropical Old World herb (Ricinus communis) widely grown as an ornamental or for its oil-rich castor beans

First Known Use of CASTOR-OIL PLANT

1836

castor–oil plant

noun    (Medical Dictionary)

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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