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ricin

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(rī′sin, ris′in)

noun

an extremely toxic protein found in the castor bean and isolated as a white powder: it agglutinates red blood corpuscles

Origin: < L ricinus, castor-oil plant

See ricin in American Heritage Dictionary 4

noun

A poisonous protein extracted from the castor bean and used as a biochemical reagent.

Origin:

Origin: From Latin ricinus, castor-oil plant

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