early 15c., "act of scattering," from Latin dissipationem (nominative dissipatio), noun of action from past participle stem of dissipare (see dissipate). Meaning "intemperate mode of living" is from 1784.
1. Her face was a revelation of age and dissipation.
2. the dissipation of energy in the form of heat
3. Don't permit yourself in dissipation.
4. She was enervated from dissipation.
5. Of course he'd ruined his constitution by drink and dissipation.