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2017 Word of the Year

bornite

[bawr-nahyt] /ˈbɔr naɪt/
noun
1.
a common mineral and important ore of copper, copper iron sulfide, Cu 5 FeS 4 , occurring in masses, of brownish color when first exposed to the air; peacock ore.
Origin of bornite
1850-1855
1850-55; named after I. von Born (1742-91), Austrian mineralogist; see -ite1
Related forms
bornitic
[bawr-nit-ik] /bɔrˈnɪt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for bornite
Historical Examples
  • Much of the copper of commerce is made from chalcopyrite and bornite, and these ores are more difficult to work.

British Dictionary definitions for bornite

bornite

/ˈbɔːnaɪt/
noun
1.
a mineral consisting of a sulphide of copper and iron that tarnishes to purple or dark red. It occurs in copper deposits. Formula: Cu5FeS4 Also called peacock ore
Word Origin
C19: named after I. von Born (1742–91), Austrian mineralogist; see -ite1
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
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Word Value for bornite

9
11
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