1. the action of dispersing or scattering something
2. wasteful or excessive indulgence in pleasure or entertainment
3. the gradual loss or waste of energy, resources, or substance

Examples

• The dissipations of heat through the metal caused the engine to cool down.
• His dissipations of the family fortune left them in poverty.
• The fog showed signs of dissipation as the sun rose higher.
• Her parents worried about her dissipations at college parties.
• The dissipations of energy in the system reduced its efficiency.
• The storm’s dissipations left clear skies in its wake.