Source : Webster's Revised Unabridged Dictionary (1913)

Lithography \Li*thog"ra*phy\, n. [Cf. F. lithographie.]
   The art or process of putting designs or writing, with a
   greasy material, on stone, and of producing printed
   impressions therefrom. The process depends, in the main, upon
   the antipathy between grease and water, which prevents a
   printing ink containing oil from adhering to wetted parts of
   the stone not covered by the design. See {Lithographic
   limestone}, under {Lithographic}.

Source : WordNet®

lithography
     n 1: a method of planographic printing from a metal or stone
          surface
     2: the act of making a lithographic print