castor bean definition

  • noun:
    • The castor-oil plant.
    • The poisonous seed of castor-oil plant, from where castor-oil is gotten.
    • The seed of this castor-oil plant, Ricinus communis; found in the production of castor-oil and of the poison ricin.
    • See bean.
    • the toxic seed associated with castor-oil plant; supply of castor oil
  • others:
    • The bean or seed of this castor-oil plant (Ricinus communis, or Palma Christi.)

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