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
First Known Use: 1896
Medical Dictionary

ricin

noun ri·cin \ˈrīs-ən, ˈris-\

Medical Definition of RICIN

:  a poisonous protein in the castor bean

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