dissipation

The act of dissipating or dispersing; a state of dispersion or separation; dispersion; waste.

without loss or dissipation of the matter

the famous dissipation of mankind

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.

18th century, Patrick Henry in a parliamentary debate to reclaim the spendthrift from his dissipation and extravagance

I rose by candle-light, and consumed, in the intensest application, the hours which every other individual of our party wasted in enervating slumbers, from the hesternal dissipation or debauch.

A trifle which wastes time or distracts attention.

Prevented from finishing them [the letters] a thousand avocations and dissipations.

A loss of energy, usually as heat, from a dynamic system.

They conclude[…] the planet will have a final period of rotation between 56 and 88 days, depending on the assumed form of the dissipation function.