sour orange

1 definition found

sour orange - WordNet (r) 2.1 (2005) :

  sour orange
      n 1: any of various common orange trees yielding sour or bitter
           fruit; used as grafting stock [syn: sour orange, 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, sour orange]