pasteurization
noun /ˌpɑːstʃəraɪˈzeɪʃn/
  /ˌpæstʃərəˈzeɪʃn/
 (British English also pasteurisation)
 [uncountable]- the process of heating a liquid, especially milk, to a particular temperature and then cooling it, in order to kill harmful bacteriaTopics Farmingc2