Examples of castor bean in a Sentence
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Letters and packages containing Ricin, a poison found in castor beans, have been sent to the president and other top U.S. officials in the past, including in 2018 and 2020.
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Kate Perez, USA Today, 22 Feb. 2026
European Viscum species are considered more toxic due to the presence of viscumin, a toxin similar to ricin from castor bean that is not present in their American Phoradendron counterparts.
—Matt Kasson, Popular Science, 17 Dec. 2025
Made from sustainable sources—like castor beans, oils and polysaccharides—BioCir Flex biodegrades into renewable biomass when composted in industrial facilities or can be recycled for continuous use.
—Alexandra Harrell, Sourcing Journal, 4 Dec. 2025
How Castor Oil Works as a Laxative Castor oil is a thick, pale yellow liquid extracted from the seeds of the castor bean plant (Ricinus communis).
—Lindsay Curtis, Verywell Health, 11 July 2025
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Kate Perez, USA Today, 22 Feb. 2026
European Viscum species are considered more toxic due to the presence of viscumin, a toxin similar to ricin from castor bean that is not present in their American Phoradendron counterparts.
—Matt Kasson, Popular Science, 17 Dec. 2025
Made from sustainable sources—like castor beans, oils and polysaccharides—BioCir Flex biodegrades into renewable biomass when composted in industrial facilities or can be recycled for continuous use.
—Alexandra Harrell, Sourcing Journal, 4 Dec. 2025
How Castor Oil Works as a Laxative Castor oil is a thick, pale yellow liquid extracted from the seeds of the castor bean plant (Ricinus communis).
—Lindsay Curtis, Verywell Health, 11 July 2025
See All Example Sentences for castor bean
Cite this Entry
“Castor bean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/castor%20bean. Accessed 7 Mar. 2026.
Copy CitationMedical Definition
castor bean
noun
cas·tor bean
ˈkas-tər- 
: the very poisonous seed of the castor-oil plant
also
: castor-oil plant
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