conduit vs snorkel

conduit

noun
  • A duct or tube into which electrical cables may be pulled; a type of raceway. 

  • A pipe or channel for conveying water, etc. 

  • A means by which something is transmitted. 

  • An investment vehicle that issues short-term commercial paper to finance long-term off-balance sheet bank assets. 

snorkel

noun
  • A retractable tube fitted in diesel-engine submarines to allow sufficient ventilation that the engines may be used at periscope depth. 

  • A snorkel parka. 

  • A hollow tube, held in the mouth, or mounted on and opening into a diving mask, used by swimmers for breathing underwater. 

verb
  • To use a snorkel. 

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