Having the capacity to separate spectral colours by refraction. (adjective)
Regarding all twelve traditional Western pitch classes, regardless of temperament or intonation; Regarding entire sets of alternative pitch class systems. (adjective)
Examples of word chromatic
The term chromatic derives from the Greek word chroma, meaning color.
For today we chose to share with you this playful set of tea cup stools, which ranks high in chromatic but also originality.
I would be curious to know whether composers who work with just intonation came to it through diatonicism and then realized how cool it would be to adapt it to chromaticism, or whether they were chromatic from the start and just continually dissatisfied with the equal-tempered results.
John, to your last question, yes, I think a painting keyed heavily to a color family contributes to a photographic impression, because our own visual system has a "white balance" function called chromatic adaptation, which automatically corrects for a color cast.
Saturation refers to chromatic purity, or freedom from dilution with white.