amelanistic vs melanoid

amelanistic

adj
  • Having or relating to amelanism. 

melanoid

noun
  • Synonym of melanoidin 

adj
  • Relating to, or afflicted with, melanosis. 

  • Relating to, or resembling, melanin. 

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