heterochromatic vs heterochromic

heterochromatic

adj
  • Of or relating to heterochromatin. 

  • Having more than one colour; relating to heterochromia. 

  • Of light, having more than one wavelength. 

heterochromic

adj
  • Relating to, or characterised by, heterochromia. 

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