Dictionary
castor bean
noun
Definition of CASTOR BEAN
: the very poisonous seed of the castor-oil plant; also : castor-oil plant
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First Known Use of CASTOR BEAN
1819
Medical Dictionary
castor bean
noun cas·tor bean \ˈkas-tər-\
Medical Definition of CASTOR BEAN
: the very poisonous seed of the castor-oil plant; also : castor-oil plant
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