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blue gum

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noun
  1. eucalyptus.
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Origin of blue gum

First recorded in 1795–1805
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for blue gum

blue gum

noun
  1. a tall fast-growing widely cultivated Australian myrtaceous tree, Eucalyptus globulus, having aromatic leaves containing a medicinal oil, bark that peels off in shreds, and hard timber. The juvenile leaves are bluish in colour
  2. any of several other eucalyptus trees
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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