Pronunciation: (wosh'bôrd", -bōrd", wôsh'-), [key]
1. a rectangular board or frame, typically with a corrugated metallic surface, on which clothes are rubbed in the process of washing.
2. a baseboard around the walls of a room.
3. Also called splashboard. Naut.
a. a thin, broad plank fastened to and projecting above the gunwale or side of a boat to keep out the spray and sea.
b. a similar board on the sill of a port.
resembling a washboard in being rough and bumpy: a washboard roadbed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.