length vs shelf life

length

noun
  • duration. 

  • The number of cards held in a particular suit. 

  • A unit of script length, comprising 42 lines. 

  • The distance measured along the longest dimension of an object. 

  • The length of a horse, used to indicate the distance between horses at the end of a race. 

  • Part of something that is long; a physical piece of something. 

  • Distance between the two ends of a line segment. 

  • The distance down the pitch that the ball bounces on its way to the batsman. 

  • Total extent. 

shelf life

noun
  • The length of time a product (especially food and drugs) will last without deteriorating or without being sold. 

  • The maximum time a packaged material can be stored under specific conditions and still meet the performance requirements specified. 

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