sour orange

noun

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

• Hypernyms: ↑orange, ↑orange tree

• Member Holonyms: ↑genus Citrus

• Part Meronyms: ↑bitter orange, ↑Seville orange

2. highly acidic orange used especially in marmalade

• Syn: ↑bitter orange, ↑Seville orange

• Hypernyms: ↑orange

• Part Holonyms: ↑Seville orange, ↑bitter orange, ↑bitter orange tree, ↑bigarade, ↑marmalade orange, ↑Citrus aurantium

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noun

1. : a tree (Citrus aurantium) much used as an understock in grafting

2. : the fruit of the sour orange tree having somewhat bitter pulp and used especially im making marmalade — called also bitter orange, Seville orange

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sour orange

Citrus aurantium or its fruit, which is used to make marmalade

● orange

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sour orange,

1. a bitter-tasting orange used especially in making Eau de Cologne and preserves.

2. the tree on which it grows, widely cultivated for its rootstock, on which sweet oranges and other citrus fruits are grafted.