dissipation

From Middle English dissipacion, dissipacioun, from Late Latin dissipātiō. Morphologically dissipate +‎ -ion.

• IPA^(key): /ˌdɪsɪˈpeɪʃən/
• Rhymes: -eɪʃən

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dissipation (countable and uncountable, plural dissipations)

1. The act of dissipating or dispersing; a state of dispersion or separation; dispersion; waste.
   • 1627 (indicated as 1626), Francis , “(please specify the page, or |century=I to X)”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. , London: William Rawley ; rinted by J H for William Lee , →OCLC:

     without loss or dissipation of the matter

   • a. 1677 (date written), Matthew Hale, The Primitive Origination of Mankind, Considered and Examined According to the Light of Nature, London: William Godbid, for William Shrowsbery, , published 1677, →OCLC:

     the famous dissipation of mankind

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.
   • 18th century, Patrick Henry in a parliamentary debate

     to reclaim the spendthrift from his dissipation and extravagance

   • 1828, , chapter XX, in Pelham; or, The Adventures of a Gentleman.  In Three Volumes.">…], volume II, London: Henry Colburn, , →OCLC, page 196:

     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.

   • 1847 December, Ellis Bell , “chapter VIII”, in Wuthering Heights: , volume (please specify |volume=I or II), London: Thomas Cautley Newby, , →OCLC:

     He neither wept nor prayed; he cursed and defied: execrated God and man, and gave himself up to reckless dissipation.

   • 1913, Robert Barr, chapter 4, in Lord Stranleigh Abroad, →OL:

     This is a surprise attack, and I’d no wish that the garrison, forewarned, should escape. I am sure, Lord Stranleigh, that he has been descanting on the distraction of the woods and the camp, or perhaps the metropolitan dissipation of Philadelphia,

   • 1913 June–December, Edgar Rice Burroughs, “What Happened in the Rue Maule”, in The Return of Tarzan, New York, N.Y.: A L Burt Company, , published March 1915, →OCLC, pages 34–35:

     An oil lamp burned upon a high, old-fashioned mantel, casting its dim rays over a dozen repulsive figures. All but one were men. The other was a woman of about thirty. Her face, marked by low passions and dissipation, might once have been lovely.

3. A trifle which wastes time or distracts attention.
   • 1733 May 28, letter from Alexander Pope to Jonathan Swift:

     Prevented from finishing them a thousand avocations and dissipations.

4. (physics) A loss of energy, usually as heat, from a dynamic system.
   • 1965 November 6, G. Colombo, “Rotational Period of the Planet Mercury”, in Nature, volume 208, number 575, →DOI:

     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.

From dissiper +‎ -tion.

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dissipation f (plural dissipations)

1. clearing, dissipation, disappearance

• “dissipation”, in Trésor de la langue française informatisé , 2012.