bitter orange tree

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of various common orange trees yielding sour or bitter fruit;
used as grafting stock
• Syn:
sour orange, Seville orange, bitter orange, bigarade, marmalade orange, Citrus aurantium
• Hypernyms:
orange, orange tree
• Member Holonyms:
genus Citrus
• Part Meronyms:
bitter orange, Seville orange, sour orange