1. (of light or other electromagnetic radiation) composed of more than one wavelength
   "polychromatic light" 
2. Having or exhibiting many colours
   - polychrome, polychromic

See also: colored [US], colorful [US], coloured [Brit, Cdn], colourful [Brit, Cdn]

Antonym: monochromatic

Encyclopedia: Polychromatic

• Old Glory
• old gold
• old growth
• old guard
• old hand
• Old Hickory
• Old High German
• Old Icelandic
• Old Irish
• Old Ironsides
• Old Italian
• old lady
• Old Latin
• Old Line State
• old maid
• old maid flower
• old man
• old man of the mountain
• old man's beard
• old master
• old money
• Old Nick
• Old Norse
• Old North French
• Old North State