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buhrstone

[ bur-stohn ]

noun

  1. a variant of burstone.


buhrstone

/ ˈbɜːˌstəʊn /

noun

  1. a hard tough rock containing silica, fossils, and cavities, formerly used as a grindstone
  2. a grindstone or millstone made of this rock
“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 History and Origins

Origin of buhrstone1

C18 burr , perhaps identical to burr 1(alluding to roughness)

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