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BNC: 0 COCA: 31352

ricin

noun
/ˈraɪsɪn/
/ˈraɪsɪn/
[uncountable]
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  1. a very poisonous substance obtained from the seeds of the castor oil plant蓖麻毒素;蓖麻毒蛋白
    Word Originlate 19th cent.: from modern Latin Ricinus communis (denoting the castor oil plant) + -in.
BNC: 0 COCA: 31352
BNC: 0 COCA: 31352

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