maculate vs polychromate

maculate

adj
  • Marked with spots or maculae; blotched. 

  • Defiled; impure. 

verb
  • To spot; to stain; to blur. 

polychromate

adj
  • Composed of many colours 

noun
  • A salt or ion composed of multiple chromate groups 

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