'Burrstone' definitions:

Definition of 'Burrstone'

From: GCIDE
  • Burrstone \Burr"stone`\, n. See Buhrstone. [1913 Webster]

Definition of 'burrstone'

From: GCIDE
  • Buhrstone \Buhr"stone`\, n. [OE. bur a whetstone for scythes.] (Min.) A cellular, flinty rock, used for mill stones. [Written also burrstone.] [1913 Webster]