dissipation

1. The act of dissipating or dispersing; a state of dispersion or separation; dispersion; waste. (countable, uncountable)
2. A dissolute course of life, in which health, money, etc., are squandered in pursuit of pleasure; profuseness in immoral indulgence, as late hours, riotous living, etc.; dissoluteness. (countable, uncountable) · 18th century, Patrick Henry in a parliamentary debate to reclaim the spendthrift from his dissipation and extravagance
3. A trifle which wastes time or distracts attention. (countable, uncountable)
4. A loss of energy, usually as heat, from a dynamic system. (countable, uncountable)

Plural dissipations