heterochromic vs walleyed

heterochromic

adj
  • Relating to, or characterised by, heterochromia. 

walleyed

adj
  • Having eyes with a pale-coloured iris. 

  • Suffering from exotropia. 

  • Having bulging eyes. 

  • Having eyes of different colours. 

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