Definition of macadamia nut
: a hard-shelled nut of an Australian evergreen tree (genus Macadamia, especially M. integrifolia or M. tetraphylla) of the protea family that somewhat resembles the filbert and is cultivated extensively in Hawaii
— called also macadamia
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Merriam-Webster unabridged
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Time Traveler for macadamia nut
The first known use of macadamia nut was in 1929
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