1. the process of gradually disappearing or being used up completely
2. wasteful or excessive spending or use of resources
3. indulgence in excessive pleasure-seeking activities, especially drinking and partying
Usage: often disapproving

Examples

• The dissipation of heat through the metal caused it to cool quickly.
• The fog began its slow dissipation as the sun rose higher.
• His dissipation of the family fortune left them in debt.
• The company’s dissipation of resources led to bankruptcy.
• Years of dissipation had taken a toll on his health.
• She criticized his lifestyle of dissipation and excess.
• The dissipation of energy in the system reduced its efficiency.