geometrid vs looper

geometrid

noun
  • A larva of such moth, which when walking alternate legs and prolegs, giving the appearance of measuring 

  • Any of the family Geometridae of moths 

adj
  • Relating to such moths 

looper

noun
  • A moth having a caterpillar which arches its body into a loop in order to bring the back part of the body forward as it walks due to having fewer prolegs, including inchworms or measuring worms in the family Geometridae and some species in the family Noctuidae. 

  • An instrument or tool, such as a bodkin, for forming a loop in yarn or cord, etc. 

  • A (usually electronic) tool for creating music loops. 

  • A golf caddy 

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