kaleidoscopic vs polychromic

kaleidoscopic

adj
  • Brightly coloured and continuously changing in pattern, as if in a kaleidoscope. 

  • Of, relating to, or produced by a kaleidoscope. 

polychromic

adj
  • Polychromatic; many-coloured. 

  • Pertaining to, or designating, any one of several acids (known only in their salts) which contain more than one atom of chromium. 

How often have the words kaleidoscopic and polychromic occurred in a corpus of books? (source: Google Ngram Viewer )