measurement vs rationale

measurement

noun
  • The act of measuring. 

  • Value (quantity, magnitude, extent or amount) determined by an act of measuring. 

rationale

noun
  • A justification or rationalization for something. 

  • An explanation of the basis or fundamental reasons for something. 

  • A liturgical vestment worn by some Christian bishops of various denominations. 

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