chrominance
nounUK /ˈkɹəʊ.mɪn.əns/ · US /ˈkɹoʊ.mɪ.nəns/
Etymology Blend of chroma + luminance.
1
The signal used in video systems to convey the picture's colour information, separately from the accompanying luma signal.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.