Washboard
Pronunciation : Wash"board`
Part of Speech : n.
Definition : 1. A fluted, or ribbed, board on which clothes are rubbed in washing them.
2. A board running round, and serving as a facing for, the walls of a room, next to the floor; a mopboard.
3. (Naut.)
Defn: A broad, thin plank, fixed along the gunwale of boat to keep the sea from breaking inboard; also, a plank on the sill of a lower deck port, for the same purpose; -- called also wasteboard. Mar. Di
Source : Webster's Unabridged Dictionary, 1913