contrasted vs polychromate

contrasted

adj
  • Displaying or marked by contrast; contrasty. 

  • Set in contrast (of two or more things). 

polychromate

adj
  • Composed of many colours 

noun
  • A salt or ion composed of multiple chromate groups 

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