bigarade vs bitter orange tree

bigarade and bitter orange tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
bigarade	Yes	No	No	No
bitter orange tree	Yes	No	No	No

As nouns, bigarade and bitter orange tree are synonyms defined as:

bigarade and bitter orange tree: any of various common orange trees yielding sour or bitter fruit; used as grafting stock

Other synonyms of bigarade include bitter orange, Citrus aurantium, marmalade orange, Seville orange, sour orange.

bigarade (noun)	bitter orange tree (noun)
any of various common orange trees yielding sour or bitter fruit; used as grafting stock	any of various common orange trees yielding sour or bitter fruit; used as grafting stock