castor oil : Idioms & Phrases


Castor-oil plant

  • noun 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
    castor bean plant; palma christi; palma christ; Ricinus communis.
WordNet
  • . Same as Palma Christi.
Webster 1913