Wiper

Definition:

(n.) One who, or that which, wipes.
(n.) Something used for wiping, as a towel or rag.
(n.) A piece generally projecting from a rotating or swinging piece, as an axle or rock shaft, for the purpose of raising stampers, lifting rods, or the like, and leaving them to fall by their own weight; a kind of cam.
(n.) A rod, or an attachment for a rod, for holding a rag with which to wipe out the bore of the barrel.

Compare wiper with other words:

wiped vs. wiper