- the art or process of producing a picture, writing, or the like, on a flat, specially prepared stone, with some greasy or oily substance, and of taking ink impressions from this as in ordinary printing.
- a similar process in which a substance other than stone, as aluminum or zinc, is used.
- a method of printing from a metal or stone surface on which the printing areas are not raised but made ink-receptive while the non-image areas are made ink-repellent
