deoxidation vs diminution

deoxidation

noun
  • The process of extracting the oxygen content of a dissolved oxide, or of removing dissolved oxygen, with the aid of a reducing agent. 

diminution

noun
  • A lessening, decrease or reduction. 

  • a compositional technique where the composer shortens the melody by shortening its note values. 

  • The act or process of making diminutive. 

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