Webster’s Revised Unabridged Dictionary · 1913
Bushhammer
Bush′ham′mer (·hăm′mẽr), n. A hammer with a head formed of a bundle of square bars, with pyramidal points, arranged in rows, or a solid head with a face cut into a number of rows of such points; — used for dressing stone.
Bush′ham′mer, v. t. To dress with bushhammer; as, to bushhammer a block of granite.