An early color photography process using sunlight to expose and develop color images on photographic plates or film.
From Greek 'helios' (sun) and 'chroma' (color), named because the process relied directly on the sun's radiation to create colored photographic images.
Before digital cameras, heliochrome was one of the first ways photographers could capture color—they literally used sunlight as part of the chemical development process!
Complete word intelligence in one call. Free tier — 50 lookups/day.