castor bean

noun

: the very poisonous seed of the castor-oil plant

Examples of castor bean in a Sentence

Recent Examples on the Web Related Articles Different kinds of toxic plants cause gastrointestinal distress, like azaleas and rhododendrons, and some are deadly, such as poison hemlock, aconite/monkshood, castor bean seeds and Nicotiana glauca. Sara Okeefe, The Mercury News, 16 Mar. 2024 The oil is made from castor beans, and has long been used to make soap, lubricating products, and coatings. Calin Van Paris, Vogue, 16 Dec. 2023 Still, ticks in other parts of the world also can cause AGS, such as the Australian paralysis tick, the castor bean tick in Europe, and the Asian longhorned tick. Joshua Rapp Learn, Discover Magazine, 14 Sep. 2023 Castor seed oil: Another natural oil derived from castor beans, castor oil is rich in a type of monounsaturated fatty acid, ricinoleic acid, which helps your skin retain moisture. Rachael Schultz, Health, 12 Apr. 2023 She was sentenced Thursday by Judge Dabney L. Friedrich in federal court in D.C. Ricin can be made from waste materials from the processing of castor beans. Paul Duggan, BostonGlobe.com, 17 Aug. 2023 Castor oil is a type of vegetable oil produced by pressing the seeds of the castor bean plant. Katie Camero, NBC News, 5 Aug. 2023 The type of vegetable oil—made by cold-pressing seeds of the castor bean plant—is commonly used to relieve dry eye and ease constipation. Korin Miller, Health, 22 June 2023 On Earth Day, community volunteers worked to beautify Eaton, clearing paths, removing invasive plants like black mustard and castor bean and repainting poles. Dakota Kim, Los Angeles Times, 11 May 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'castor bean.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1819, in the meaning defined above

Time Traveler
The first known use of castor bean was in 1819

Dictionary Entries Near castor bean

Cite this Entry

“Castor bean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/castor%20bean. Accessed 20 Apr. 2024.

Kids Definition

castor bean

noun
cas·​tor bean
ˈkas-tər-
: the very poisonous seed of the castor-oil plant

Medical Definition

castor bean

noun
cas·​tor bean ˈkas-tər- How to pronounce castor bean (audio)
: the very poisonous seed of the castor-oil plant

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