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Longman Dictionary of Contemporary English
dissipation
noun
EXAMPLES FROM OTHER ENTRIES
▪ A heavy coat makes heat dissipation difficult.
▪ Conrad lived a life of luxury and dissipation.
EXAMPLES FROM CORPUS
▪ At Eschede the almost instantaneous dissipation of kinetic energy was bound to cause massive damage.
▪ But pop sets itself against nature and abandons wisdom for folly, moments of dissipation.
▪ From the destruction and the dissipation of energy, more complex forms came into being.
▪ His slack, slaked face seemed about to drop off with sheer gravity of dissipation.
▪ Ill health removed the pleasures of dissipation for him, and there was nothing to assuage his guilt and regret.
▪ Or would it produce delay and dissipation of resources?
The Collaborative International Dictionary
Dissipation

Dissipation \Dis`si*pa"tion\ (d[i^]s`s[i^]*p[=a]"sh[u^]n), n.

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

    Without loss or dissipation of the matter.
    --Bacon.

    The famous dissipation of mankind.
    --Sir M. Hale.

  2. A dissolute course of life, in which health, money, etc., are squandered in pursuit of pleasure; profuseness in vicious indulgence, as late hours, riotous living, etc.; dissoluteness.

    To reclaim the spendthrift from his dissipation and extravagance.
    --P. Henry.

  3. A trifle which wastes time or distracts attention.

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

    Dissipation of energy. Same as Degradation of energy, under Degradation.

Douglas Harper's Etymology Dictionary
dissipation

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.

Wiktionary
dissipation

n. 1 The act of dissipating or dispersing; a state of dispersion or separation; dispersion; waste. 2 A dissolute course of life, in which health, money, etc., are squandered in pursuit of pleasure; profuseness in vicious indulgence, as late hours, riotous living, etc.; dissoluteness.

WordNet
dissipation
  1. n. breaking up and scattering by dispersion; "the dissipation of the mist"

  2. dissolute indulgence in sensual pleasure [syn: profligacy, dissolution, licentiousness]

  3. useless or profitless activity; using or expending or consuming thoughtlessly or carelessly; "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources" [syn: waste, wastefulness]

Wikipedia
Dissipation

Dissipation is the result of an irreversible process that takes place in inhomogeneous thermodynamic systems. A dissipative process is a process in which energy (internal, bulk flow kinetic, or system potential) is transformed from some initial form to some final form; the capacity of the final form to do mechanical work is less than that of the initial form. For example, heat transfer is dissipative because it is a transfer of internal energy from a hotter body to a colder one. Following the second law of thermodynamics, the entropy varies with temperature (reduces the capacity of the combination of the two bodies to do mechanical work), but never decreases in an isolated system.

These processes produce entropy (see entropy production) at a certain rate. The entropy production rate times ambient temperature gives the dissipated power. Important examples of irreversible processes are: heat flow through a thermal resistance, fluid flow through a flow resistance, diffusion (mixing), chemical reactions, and electrical current flow through an electrical resistance (Joule heating).

Usage examples of "dissipation".

Robert Fitz-Stephen, a powerful man of the Norman type, handsome, freehanded, sumptuous in his way of living, liberal and jovial, given to wine and dissipation.

You will not catch pneumonia after breaking through the ice or getting lost in the snow, unless you already have the germs of the disease in your mouth and throat, and your constitution has already been run down by bad air, under-feeding, overwork, or dissipation.

In front of the treelike Kanten, the filament in which they rode spiraled down and away into red dissipation.

Palais Royal, he collected a trio of plump tarts and an assortment of male comrades, and plunged into dissipation.

This isolated advance of the Japs into Brazil struck observers as a dissipation of energy, but the Government in Tokio continued to carry out its plans, undisturbed by our expressions of astonishment.

The small settlement, to whose teahouses the monks went for their dissipations, was a landing-place for vessels plying back and forth across the lake, and the bawdyhouses buzzed with excitement when Kiyomori and his troopers arrived to surround it in a house-to-house search.

As a young man, at the court of Basilwho, though infamous for his cruelties and dissipations, was all man, something his son is notAlexandros Pahpahs stood out like a sore thumb.

As it is not very difficult to make the acquaintance of these priestesses of pleasure and dissipation, I soon got to know several of them.

She made use of our house in the Rue du Cirque for purposes of dissipation for herself and her daughter Cesarine.

In my character of dupe I told her that in Lent I would make amends for the dissipation which prevented me paying my court to her.

Although conscious of entire blamelessness, she supposed that she was more directly the cause of Haldane's behavior than was true, and that he was carrying out his threat to destroy himself by reckless dissipation.

But really, I was only trying to prove the usage of carryon particles in the dissipation of the Newmonia disease.

Which means a dissipation of energy by tidal friction, which means the circularization of the orbit.

As yet, there was no sign nor line of dissipation marked upon her piquant face, nor in her consociation with Jimmy was there ever the slightest reference to or reminder of her vocation.

Then I decided, for like the ten thousandth time, that I was one rotten contradictory fellow, that my talent of dissipation should have long since turned me into a slack, wheezing, puffy ruin, had it not been combined with that iron Calvinistic conscience which, upon noting too much progressive decay, would drive me into the kind of training the decathlon boys seem to enjoy, punishing myself back into the kind of fitness that makes you feel as if no maniac could dent you with a sledge hammer.