title: Processing medium
text: # Processing medium
  
  In industrial engineering, a processing medium is a gaseous, vaporous, fluid or shapeless solid material that plays an active role in manufacturing processes - comparable to that of a tool.
  
  ## Examples
  
  A processing medium for washing is a soap solution, a processing medium for steel melting is a plasma, and a processing medium for steam drying is superheated steam.
  
  ## Synonyms
  
  * Operating medium
  * Working medium.
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