ALL meanings of burrstone
burr·stone
B b - abbreviation BURRSTONE buhrstone 3
- noun burrstone any of various siliceous rocks used for millstones. 1
- noun burrstone a millstone of such material. 1
- noun burrstone A tough, silicified limestone formerly used to make millstones. It is typified by the presence of multiple cavities that originally housed fossilized shells. 0