Polychromatic
WordNet
adjective
(1) (of light or other electromagnetic radiation) composed of more than one wavelength
"Polychromatic light"
(2) Having or exhibiting many colors
WiktionaryText
Adjective
polychromatic
- Showing a variety, or a change, of colours; having many colours; multicoloured.
- (of electromagnetic radiation) Composed of more than one wavelength.