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ricin

Pronunciation: /ˈrʌɪsɪn, ˈrɪsɪn/
Definition of ricin

noun

[mass noun] Chemistry
  • a highly toxic protein obtained from the pressed seeds of the castor oil plant.

Origin:

late 19th century: from modern Latin Ricinus communis (denoting the castor oil plant) + -in1

ricin in other Oxford dictionaries

Definition of ricin in the US English dictionary

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