#sterilization__sterilisation  the procedure of making some object free of live bacteria of other microorganisms (usually by heat or chemical means)
  supertype:  cleaning__cleansing__cleanup  the act of making something clean; "he gave his shoes a good cleaning"
  subtype:  pasteurization__pasteurisation  partial sterilization of foods at a temperature that destroys harmful microorganisms without major changes in the chemistry of the food

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