castor bean

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Related to castor beans: castor oil

castor bean

n.
1. The castor-oil plant.
2. The poisonous seed of the castor-oil plant, from which castor oil is obtained.

castor bean

n
1. (Plants) another name for castor-oil plant
2. (Plants) the seed of this plant

cas′tor bean`


n.
1. the poisonous seed of the castor-oil plant.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.castor bean - the toxic seed of the castor-oil plantcastor bean - the toxic seed of the castor-oil plant; source of castor oil
oil-rich seed, oilseed - any of several seeds that yield oil
castor bean plant, castor-oil plant, palma christ, palma christi, Ricinus communis - large shrub of tropical Africa and Asia having large palmate leaves and spiny capsules containing seeds that are the source of castor oil and ricin; widely naturalized throughout the tropics
References in periodicals archive ?
Miller told the investigators that she learned how to make ricin off the internet and had harvested about 30 or 40 castor beans, a key ingredient in the poison, on the property of the community.
Castor beans, like most agricultural products, have the capacity to gain or lose moisture from the environment.
They found a number of castor beans, which are used to make the lethal chemical agent, but quickly ruled out a possible terror threat.
He is accused of attempting to have 500mg of ricin - which is a poison found in castor beans - in his possession between January 10 and February 12 this year.
Averages for the final production of the byproducts of cotton, castor beans and moringa had the highest rates at the 30% level and the lowest rates at 70% substitution.
The leather is made using an olive leaf tanning process and the key has been created from crushed castor beans.
She acknowledged in a signed plea agreement document filed Tuesday that she ordered castor beans online and learned how to process them into a substance used to make ricin, it added.
Traces of ricin also were found in the studio, and Dutschke used the Internet to buy castor beans, from which the poison is derived, the affidavit said.
When the oil is extracted from the castor beans it is washed with water which completely removes all traces of the toxin.
An FBI agent testified in court in Mississippi that the ricin found in the letters was in a crude form and looked like castor beans ground up in a blender, according to media accounts.