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Qué (quién) es ricin - definición
HIGHLY TOXIC, NATURALLY OCCURRING LECTIN PRODUCED IN THE SEEDS OF THE CASTOR OIL PLANT, RICINUS COMMUNIS
Ricin toxin; Ricen
![A metal vial containing ricin from the [[2003 ricin letters]]](https://commons.wikimedia.org/wiki/Special:FilePath/October 2003 ricin letter metal vial.jpg?width=200 "A metal vial containing ricin from the [[2003 ricin letters]]")
ricin
['r??s?n, 'r?s?n]
¦ noun Chemistry a highly toxic protein obtained from the pressed seeds of the castor oil plant.
Origin
C19: from mod. L. Ricinus communis (denoting the castor oil plant) + -in1.
Wood Green ricin plot
FOILED TERRORIST PLOT
Wood Green no-ricin plot; Ricin plot; Mohamed Meguerba
The Wood Green ricin plot was an alleged bioterrorism plot to attack the London Underground with ricin poison. The Metropolitan Police Service arrested six suspects on 5 January 2003, with one more arrested two days later.
2003 ricin letters
The 2003 ricin letters were two ricin-laden letters found on two occasions between October and November 2003. One letter was mailed to the White House and intercepted at a processing facility; another was discovered with no address in South Carolina.
Wikipedia
Ricin
Ricin ( RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis. The median lethal dose (LD50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection. Oral exposure to ricin is far less toxic. An estimated lethal oral dose in humans is approximately 1 milligram per kilogram of body weight.
Ricin is a toxalbumin and was first described by Peter Hermann Stillmark, the founder of lectinology.
Ejemplos de uso de ricin
1. Authorities suspect Bergendorff was exposed to ricin, and experts have said his symptoms appeared consistent with ricin exposure.
2. "We don‘t even know that it was him that was in possession of the ricin." She said she could not say how much ricin was in the vials.
3. But what the ricin was doing there remained a mystery.
4. Ricin is derived from castor beans and has no antidote.
5. The hospitalized man, whose name was not released, showed no signs of exposure to ricin, but ricin was discovered in Cutler‘s possession when he was arrested Saturday in a public place in Mesa, police said.