To beat into shape with a hammer.
Possessing or resembling a malleus, or another structure shaped like a hammer.
Having a surface with shallow round indentations, resembling copper that has been hammered.
To strike with a sledgehammer.
A hammer that consists of a large, heavy, broad and flat block of metal (the head) attached to a handle typically 0.5 meter to 1 meter long. The sledgehammer's design is meant to allow it to be swung powerfully, and to distribute force over a wide area upon impact.