distortion vs purification

distortion

noun
  • An effect used in music, most commonly on guitars in rock or metal. 

  • A result of distorting. 

  • A misrepresentation of the truth. 

  • An act of distorting. 

  • an aberration that causes magnification to change over the field of view. 

  • Noise or other artifacts caused in the electronic reproduction of sound or music. 

purification

noun
  • A religious act or rite in which a defiled person is made clean or free from sin. 

  • The act or process of purifying; the removal of impurities. 

  • The pouring of wine into the chalice to rinse it after communion, the wine being then drunk by the priest. 

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