1. Plural of planography; a method of printing from a flat surface, such as lithography, in which the image and non-image areas are on the same plane.
Usage: technical; printing and graphic arts

Examples

• The museum's collection includes several examples of planographies from the 19th century.
• Planographies became popular in Europe as an affordable alternative to traditional engraving.
• The artist specialized in planographies, using chemical processes to create detailed prints.
• Modern commercial printing often employs principles derived from planographies.