蓖麻油 bìmáyóu castor oil Origin Definitions Defs Strokes Stroke Words Sentences Sents 蓖麻 bìmá castor oil plant castor oil plant; its seeds are used for industrial lubricant and medicine, and its fibers can be used to make rope or paper油 yóu noun oil oil; fat; grease; any of various liquid fats or hydrocarbons used as food, fuel, or lubricants