ri·​cin | \ˈrī-sᵊn, ˈri-\

Definition of ricin 

: a poisonous protein in the castor bean

Examples of ricin in a Sentence

Recent Examples on the Web

The seeds of the castor bean plant are naturally poisonous and can be used to create ricin. Kirsten Grieshaber And David Rising, chicagotribune.com, "German authorities thwart plot to use deadly toxin in attack, prosecutors say," 14 June 2018 The shell of the castor bean is highly poisonous and can be used to make ricin. Eric Schmitt, New York Times, "ISIS May Be Waning, but Global Threats of Terrorism Continue to Spread," 6 July 2018 Tiny amounts of ricin can kill an adult if eaten, injected or inhaled. Frank Jordans, chicagotribune.com, "Tip from public helped Germany foil ricin attack plot," 20 June 2018 He is accused of having started procuring material, including a large quantity of seeds needed for the creation of ricin, online in mid-May. NBC News, "Ricin recovered from apartment in Cologne, Germany," 14 June 2018 Authorities found explosive powder and tutorials on how to make explosives and poison from materials such as ricin, the official said. Bloomberg.com, "French Government Says Attack Foiled, Egyptian Man Arrested," 18 May 2018 The court filing does not state what authorities believe Gibbs intended to do with the ricin. AJC.com, "Ricin suspect told cops he had ‘dangerous’ seeds. Then they let him go.," 26 Jan. 2018 Investigators found the ricin in a container that was double wrapped with plastic bags. Chris Harris, PEOPLE.com, "S.C. Woman Whose Boyfriend Died Under 'Suspicious' Circumstances Accused of Possessing Ricin," 2 May 2018 Investigators also found castor beans, which naturally produce ricin, and a jar labeled as containing botulism. Aimee Green, OregonLive.com, "Man who flung ricin-laced meat at neighbor's dogs agrees to pay $80k," 23 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ricin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of ricin

1896, in the meaning defined above

History and Etymology for ricin

Latin ricinus castor-oil plant

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Statistics for ricin

Last Updated

17 Nov 2018

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Time Traveler for ricin

The first known use of ricin was in 1896

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ri·​cin | \ˈrīs-ᵊn, ˈris- \

Medical Definition of ricin 

: a poisonous protein in the castor bean

More from Merriam-Webster on ricin

Britannica.com: Encyclopedia article about ricin

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