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castor bean

American  

noun

  1. the seed of the castor-oil plant.

  2. castor-oil plant.


castor bean British  

noun

  1. another name for castor-oil plant

  2. the seed of this plant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of castor bean

1810–20, short for castor-oil bean

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“Those, over there, are actually castor bean stalks,” Kleckner said as we zoomed past.

From Los Angeles Times Nov. 7, 2024

The researchers looked at a species of tick called the castor bean tick, which is common across Europe.

From Seattle Times Jul. 1, 2023

The pollen grains of various common plants like sunflower, morning glories, prairie hollyhock, oriental lily, evening primrose and castor bean — magnified 500 times and colorized in this image — display intricate patterns.

From Salon Sep. 23, 2022

As an example, she points to the black-legged tick and the castor bean tick Ixodes ricinus, both of which spread Lyme disease.

From Scientific American Feb. 25, 2022

The "semi-drying oils," those that will harden somewhat on exposure to the air, include the oils of cottonseed, corn, sesame, soy bean and castor bean.

From Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries by Slosson, Edwin E.

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