First Known Use: 1896
Dictionary
ricin
noun ri·cin \ˈrī-sən, ˈri-\
Definition of RICIN
: a poisonous protein in the castor bean
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Origin of RICIN
Latin ricinus castor-oil plant
Medical Dictionary
ricin
noun ri·cin \ˈrīs-ən, ˈris-\
Medical Definition of RICIN
: a poisonous protein in the castor bean
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