dilatation vs intensification

dilatation

noun
  • The act of dilating; expansion; an enlarging on all sides; the state of being dilated 

  • Prolixity; diffuse discourse. 

  • A dilation or enlargement of a canal or other organ. 

intensification

noun
  • The act or process of intensifying, or of making more intense. 

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