castor bean


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Related to castor bean: castor bean plant, rosary pea

castor bean,

bean produced by Ricinus communis, a plant of the spurgespurge
, common name for members of the Euphorbiaceae, a family of herbs, shrubs, and trees of greatly varied structure and almost cosmopolitan distribution, although most species are tropical. In the United States the family is most common in the Southeast.
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 family, widely cultivated as an ornamental. Moles die when they eat the roots. It has long been used as an ordealordeal,
ancient legal custom whereby an accused person was required to perform a test, the outcome of which decided the person's guilt or innocence. By an ordeal, appeal was made to divine authority to decide the guilt or innocence of one accused of a crime or to choose between
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 poison in parts of Africa. Ricin, the toxic protein found in the bean seeds, can be extracted and used as a poison or chemical weapon, but it is not as poisonous or as readily absorbed as other such weapons. Castor oilcastor oil,
yellowish oil obtained from the seed of the castor bean. The oil content of the seeds varies from about 20% to 50%. After the hulls are removed the seeds are cold-pressed.
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 is also extracted from the beans.

castor bean

[′kas·tər ‚bēn]
(botany)
The seed of the castor oil plant (Ricinus communis), a coarse, erect annual herb in the spurge family (Euphorbiaceae) of the order Geraniales.
References in periodicals archive ?
This cooperation involves the development of an efficient, easy-to-adopt combine solution for the large-scale harvesting of Evofuel castor bean varieties in Latin America.
In fact, in Mexico, castor beans are used to make jewellery for tourists.
cotton (Gossypium barbadense), castor bean (Ricinus communis), lablab (Dilochis lablab), maize (Zea mays), and okra (Hibiscus esculentus).
Roughly 40% of this new nylon 6/10 material is sourced from castor bean oil, reducing reliance on petroleum-based inputs and helping lower the vehicle's carbon footprint.
Farmers say Global Energy Ethiopia, an American-Israeli subsidiary, initially acquired 2,700 hectares, luring farmers with false claims of continuous harvests and financial promises to grow castor beans, a toxic plant whose seed provides castor oil.
So we began collecting hosta, rhubarb and castor bean leaves, and placing them on cement, and placing sand on top of that.
In the United Kingdom the most common tick is the sheep tick, also known as the deer tick or castor bean tick.
In the northeast, scientists and government officials are pinning their hopes on an unlovely candidate: The castor bean (mamona) looks like a tick engorged with blood, and contains one of the deadliest poisons on earth.
The source of ricin, the castor bean, has been a well-own poison since ancient times.
isolated three C-CHFV strains (Ciflik 1, 6, and 11) from two Hyalomma plumbeum plumbeum and one castor bean tick (Ixodes ricinus) (1).
Because castor beans readily are available--more than 50,000 tons of castor bean extract exist around the world as a by-product of castor oil production--public health officials warn that ricin could be used for terrorism.