Wīp'er, n.
n. 1. One who wipes.
Sense 2. Something used for wiping, as a towel, or rag.
Sense 3. (Mach.) A piece generally projecting from an horizontal axle, for the purpose of raising stampers, heavy pistons, or the like, and leaving them to fall by their own weight. [See Illust. of Valve-gear.] Brande.