macadamia nut vs macadamia nut

macadamia nut and macadamia nut both are nouns.

Word	Noun	Adjective	Verb	Adverb
macadamia nut	Yes	No	No	No
macadamia nut	Yes	No	No	No

macadamia nut (noun)	macadamia nut (noun)
nutlike seed with sweet and crisp white meat	nutlike seed with sweet and crisp white meat
small Australian tree with racemes of pink flowers; widely cultivated (especially in Hawaii) for its sweet edible nuts	small Australian tree with racemes of pink flowers; widely cultivated (especially in Hawaii) for its sweet edible nuts