castor-oil plant 名詞
 蓖麻


 Pal·ma Chris·ti  Bot. A plant (Ricinus communis) with ornamental peltate and palmately cleft foliage, growing as a woody perennial in the tropics, and cultivated as an herbaceous annual in temperate regions; -- called also castor-oil plant. [Sometimes corrupted into palmcrist.]

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 Cas·tor oil A mild cathartic oil, expressed or extracted from the seeds of the Ricinus communis, or Palma Christi. When fresh the oil is inodorous and insipid.
 Castor-oil plant. Same as Palma Christi.

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 castor-oil plant
      n : 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 [syn: castor bean plant, {palma
          christi, palma christ, Ricinus communis]