Definition of ricin
: a poisonous protein in the castor bean
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Recent Examples of ricin from the Web
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Meanwhile, two members of the Minnesota Patriots Council – one of scores of heavily armed US militia groups – were convicted of planning to use ricin, a biological toxin, to kill federal agents.
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Origin and Etymology of ricin
Latin ricinus castor-oil plant
Medical Dictionary
ricin
play
noun
ri·cin
\ˈrīs-ən, ˈris-\
Medical Definition of ricin
: a poisonous protein in the castor bean
Learn More about ricin
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Britannica.com: Encyclopedia article about ricin
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