POUNDER

Pound″er (?), n. 1. 1. One who, or that which, pounds, as a stamp in an ore mill.
2. 2. An instrument used for pounding; a pestle.
3. 3. A person or thing, so called with reference to a certain number of pounds in value, weight, capacity, etc.; as, a cannon carrying a twelve-pound ball is called a twelve pounder.
☞ Before the English reform act of 1867, one who was an elector by virtue of paying ten pounds rent was called a ten pounder.