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单词 ricin
释义
ri·cin (rīsĭn, rĭsĭn)
n.
A poisonous protein extracted from the castor bean and used as a biochemical reagent.

[German Ricin, from New Latin Ricinus, castor-oil plant genus, from Latin ricinus, sheep tick, castor-oil plant (the plant being so called from the ticklike appearance of castor beans ), of unknown origin.]
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