noun.
One who or that which crushes or demolishes: as, his answer was a crusher.
noun.
A policeman.
noun.
Specifically, a crushing-machine.
noun.
A mill for grinding sugar-beets, potatoes, and other roots to reduce them to a pulp for use in the manufacture of sugar or starch.
noun.
In electricity, a device for reducing the apparent fall of potential in the ground return-circuit of an electric system.