dilatation vs stricture

dilatation

noun
  • Prolixity; diffuse discourse. 

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

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

stricture

noun
  • The degree of contact, in consonants. 

  • Abnormal narrowing of a canal or duct in the body. 

  • A general state of restrictiveness on behavior, action, or ideology. 

  • A rule restricting behaviour or action. 

  • A sternly critical remark or review. 

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