DICT.TW Dictionary Taiwan

 sour orange
      n 1: any of various common orange trees yielding sour or bitter
           fruit; used as grafting stock [syn: Seville orange, bitter
           orange, bitter orange tree, bigarade, marmalade
           orange, Citrus aurantium]
      2: highly acidic orange used especially in marmalade [syn: bitter
         orange, Seville orange]