ricinus

noun
ric·​i·​nus | \ˈris-ᵊn-əs \

Medical Definition of ricinus 

1 capitalized : a genus of plants of the spurge family (Euphorbiaceae) that have large palmate leaves and flowers with numerous stamens and include the castor-oil plant (R. communis)

2 : any plant of the genus Ricinus

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