cotton wool vs webbing

cotton wool

noun
  • Raw fibers of cotton before being processed. 

  • Soft, absorbent cotton for medical or cosmetic use, protective padding, etc. 

webbing

noun
  • A sturdy woven fabric. 

  • The webs of the digits. 

  • Tapes conducting webs of paper in a printing machine. 

  • The part of a baseball mitt between the forefinger and thumb; the web. 

  • A belt and shoulder harness with attached pouches used to carry a soldier's equipment, water, ammunition, etc. 

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