plexus vs webbing

plexus

noun
  • A network of anastomosing or interwoven nerves, blood vessels, or lymphatic vessels. 

  • The system of equations required for the complete expression of the relations which exist between a set of quantities. 

  • An interwoven combination of parts or elements in a structure or system. 

webbing

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

  • A sturdy woven fabric. 

  • The webs of the digits. 

  • Tapes conducting webs of paper in a printing machine. 

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

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