Definition of: wiper

(wī′pər) noun
1. One who wipes.
2. An article designed or used for wiping.
3. Mech. A cam having one or more slightly curved projections serving, when mounted on a rock shaft or rotating shaft, to give a reciprocating (usually vertical) motion to another part.
4. Electr. A moving member of an electrical device which makes contact with the terminals.
5. One who cleans locomotives in a roundhouse.