Longman Dictionary of Contemporary English homepage

dissipation

noun
     
dis‧si‧pa‧tion [uncountable] formal
1T the process of making something gradually weaker or less until it disappears:
the dissipation of heat
2MIDFD the enjoyment of physical pleasures in a way that is harmful:
a life of dissipation
3 the act of wasting money, time, energy etc:
the dissipation of resources

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