1. treated or coated with a bichromate compound, especially potassium bichromate, typically for use in photography or printing processes
Usage: technical; chiefly historical in photography and printmaking

Examples

• The bichromated gelatin plate was exposed to light to create the photographic image.
• Bichromated paper was commonly used in early photographic printing techniques.
• The artist prepared a bichromated surface for the gum printing process.
• Bichromated colloid solutions were essential to 19th-century photomechanical reproduction methods.