• synonyms


  1. any Australian tree of the genus Macadamia, especially M. ternifolia, having whorled leaves and elongated clusters of pink flowers.
  2. Also called macadamia nut. the edible, hard-shelled seed of this tree.
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Origin of macadamia

1900–05; < New Latin, named after John Macadam (died 1865), Australian chemist; see -ia
Also called Queensland nut.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for macadamia


  1. any tree of the Australian proteaceous genus Macadamia, esp M. ternifolia, having clusters of small white flowers and edible nutlike seeds
  2. macadamia nut the seed of this tree
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Word Origin for macadamia

C19: New Latin, named after John Macadam (1827–1865), Australian chemist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for macadamia


Australian evergreen tree, 1904, from Modern Latin (1858), named for Scotland-born chemist Dr. John Macadam (1827-1865), secretary of the Victoria Philosophical Institute, Australia.

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Online Etymology Dictionary, © 2010 Douglas Harper