"process for rendering photographs in color by hand-coloring them on paper," 1863, from German chromophotographie; see chromato- + photography. Related: Chromophotograph.
before vowels chromat-, word forming element indicating "color," in scientific use also "chromatin," from Latinized form of Greek khrōmato-, from khrōma "color" (see chroma).
"the art of producing images by application of chemical changes produced by certain substances by the action of light or other radiant energy," 1839, from photo- + -graphy. See photograph.