bellows vs plimsoll

bellows

noun
  • Any flexible container or enclosure, as one used to cover a moving joint. 

  • That which fans the fire of hatred, jealousy, etc. 

  • A device for delivering pressurized air in a controlled quantity to a controlled location. At its most simple terms a bellows is a container which is deformable in such a way as to alter its volume which has an outlet or outlets where one wishes to blow air. 

  • Flexible, light-tight enclosures connecting the lensboard and the camera back. 

verb
  • To expand and contract like a bellows. 

  • To fold up like a bellows; to accordion. 

  • To operate a bellows; to direct air at (something) using a bellows. 

plimsoll

noun
  • A rubber-soled lace-up canvas shoe for sports or onboard ships; a precursor of trainers. 

  • The plimsoll symbol ⦵ (or o) that is used as a superscript in the notation of thermodynamics to indicate an arbitrarily chosen non-zero reference point. 

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