1. a photographic printing process that produces blue images on a white background, using iron salts and light exposure.
Usage: technical; photography
2. a print or photograph made using the cyanotype process.
Usage: technical; photography

Examples

• The cyanotype process was invented in 1842 and became popular for creating architectural blueprints.
• She used cyanotype to produce striking blue-and-white photographs of botanical specimens.
• The museum displayed a collection of 19th-century cyanotypes showing historical buildings.
• Artists today still experiment with cyanotype for its distinctive aesthetic and chemical simplicity.
• The cyanotype required only basic chemicals and sunlight, making it accessible to early photographers.