The Columbia Encyclopedia, Sixth Edition. 2001-07.
slipware
pottery decorated with various colors of slip, a thin mixture of clay and water. Slip may form a design on a contrasting background, or lines may be scratched through a coating of slip to show the color beneath, in the style called graffito. The decorated plates of the Pennsylvania Germans are good examples of slipware. Great beauty in decoration achieved through the use of slip may be seen on Greek pottery.
