Dictionary.com
Thesaurus.com

buhrstone

American  
[bur-stohn] / ˈbɜrˌstoʊn /

noun

  1. a variant of burstone.

buhrstone British  
/ 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

Etymology

Origin of buhrstone

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Lead, iron, coal, gypsum, manganese, zinc, antimony, cobalt, ochre of various kinds, common salt, nitre, plumbago, porphyry, jasper, chalcedony, buhrstone, marble, and freestone, of various qualities.

From A New Guide for Emigrants to the West by Peck, John Mason

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.