Definition of dissipation noun from the Oxford Advanced American Dictionary

     

    dissipation

     noun
    noun
    NAmE//ˌdɪsəˈpeɪʃn//
     
    [uncountable](formal)
     
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  1. 1the process of disappearing or of making something disappear the dissipation of energy in the form of heat
  2. 2the act of wasting money or spending money until there is none left concerns about the dissipation of the country's wealth
  3. 3(disapproving) behavior which is enjoyable but has a harmful effect on you
See the Oxford Advanced Learner's Dictionary entry: dissipation