perimeter vs trimming

perimeter

noun
  • The outer limits of an area. See synonyms at circumference. 

  • An instrument for determining the extent and shape of the field of vision. 

  • The length of such a boundary. 

  • The sum of the distance of all the lengths of the sides of an object. 

  • A fortified strip or boundary usually protecting a military position. 

trimming

noun
  • The act or process of someone who trims. 

  • An instance of that act or process. 

  • An accessory or accompaniment. 

  • Material that is removed by someone trimming something, as a piece of steak. 

  • An ornamental accessory to a dress or other piece of clothing. 

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