sour orange

Noun sour orange has 2 senses

• sour orange(n = noun.plant) bigarade, bitter orange, bitter orange tree, citrus aurantium, marmalade orange, seville orange - any of various common orange trees yielding sour or bitter fruit; used as grafting stock;
has parts: bitter orange, seville orange, sour orange
is a member of genus citrus
is a kind of orange, orange tree

• sour orange(n = noun.food) bitter orange, seville orange - highly acidic orange used especially in marmalade;
is a kind of orange
is a part of bigarade, bitter orange, bitter orange tree, citrus aurantium, marmalade orange, seville orange, sour orange