castor bean


Definition of castor bean

: the very poisonous seed of the castor-oil plant also : castor-oil plant

Examples of castor bean in a Sentence

Recent Examples on the Web The eco-conscious shoes are designed to minimize odors and conform to your feet, thanks to the carbon-negative foam outsole made from Brazilian sugarcane and an insole made from castor bean oil and ZQ Merino wool. Kathleen Walsh, The Hollywood Reporter, 9 May 2022 Allbirds touts its research and development into and use of sustainable, natural materials in its footwear, such as eucalyptus fiber, castor bean oil, and crab shells, on top of the wool in its flagship product. Phil Wahba, Fortune, 3 Nov. 2021 Its pitch to shoe-buyers emphasizes the sustainable, natural materials used in its shoes, including eucalyptus fiber, castor bean oil, and crab shells as well as wool., 31 Aug. 2021 The company that is known for using materials like merino wool and castor bean oil in its sneakers helped Adidas re-create its featherweight Lightstrike midsole using Allbirds’ SweetFoam instead of thermoplastic urethane. Adrienne So, Wired, 12 May 2021 The breathable mesh upper is made from a eucalyptus knit, and the cushiony midsole is derived from castor bean oil. Jennifer Ford, Forbes, 15 Apr. 2021 It is made from merino wool and other materials that could double as the recipe for some kind of health tonic: eucalyptus, sugarcane, and castor bean oil. Sheila Marikar, Fortune, 21 Sep. 2020 An anatomically contoured footbed, foam insoles made from castor beans, and a flared heel offer the arch support needed for a comfortable fit. Madeline Diamond, Travel + Leisure, 28 Apr. 2020 Like many Allbirds shoes, they’re made with merino wool and have a castor bean insole to cushion your foot and minimize odor (they're meant to be worn sans socks). Madison Flager, Condé Nast Traveler, 4 May 2020 See More

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

First Known Use of castor bean

1819, in the meaning defined above

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The first known use of castor bean was in 1819

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Last Updated

24 May 2022

Cite this Entry

“Castor bean.” Dictionary, Merriam-Webster, Accessed 25 Jun. 2022.

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More Definitions for castor bean

castor bean

cas·​tor bean | \ ˈkas-tər- How to pronounce castor bean (audio) \

Medical Definition of castor bean

: the very poisonous seed of the castor-oil plant also : castor-oil plant

More from Merriam-Webster on castor bean Encyclopedia article about castor bean


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