buhrstone
/ˈbɜrˌstoʊn/
noun
- A hard, rough-surfaced stone used for grinding grain or sharpening tools.
- He sharpened his axe on a buhrstone before heading into the forest.
- The museum displayed a large buhrstone from a 19th-century gristmill.
- The old mill used a buhrstone to grind wheat into flour.
Synonyms