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dissipate

From Wiktionary, the free dictionary

English

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Etymology

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FromMiddle Englishdissipaten, fromLatindissipātus, past participle ofdissipāre, also writtendissupare(to scatter, disperse, demolish, destroy, squander, dissipate), fromdis-(apart) +supāre(to throw), also in comp.insipāre(to throw into).

Pronunciation

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Verb

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dissipate (third-person singular simple presentdissipates,present participledissipating,simple past and past participledissipated)

  1. (transitive) To drive away,disperse.
    • August 1773,James Cook,journal entry
      I soondissipated his fears.
    • 1817,William Hazlitt,The Round Table:
      The extreme tendency of civilization is todissipate all intellectual energy.
  2. (transitive) To use up orwaste;squander.
    • 1679–1715,Gilbert Burnet, “(please specify the page)”, inThe History of the Reformation of the Church of England., London: [] T[homas] H[odgkin] for Richard Chiswell, []:
      The vast wealth[] was in three yearsdissipated.
    • 1931,F. Scott Fitzgerald,Babylon Revisited:
      So much for the effort and ingenuity of Montmartre. All the catering to vice and waste was on an utterly childish scale, and he suddenly realized the meaning of the word "dissipate"—todissipate into thin air; to make nothing out of something.
    • 1986,John le Carré,A Perfect Spy:
      If he prefers the bar he can exchange views with a Major de Wildman of Lord knew whose army, who calls himself King Farouk's equerry and claims to have a private telephone link to Cairo so that he can report the winning numbers and take royal orders inspired by soothsayers on how todissipate the wealth of Egypt.
  3. (intransitive) To vanish bydispersion.
  4. (physics) To cause energy to be lost through its conversion to heat.
    • 1960 April, “English Electric diesels for the Sudan Railways”, inTrains Illustrated, page218:
      The traction motors serve as generators when dynamic braking is used, the generated output beingdissipated in fan-cooled resistance banks mounted in a removable roof section.
    • 2023 July 26, David Clough, “Technology progression defines Class 93”, inRAIL, number988, page54:
      Regenerative braking is retained. Like rheostatic braking, this uses the traction motors to provide a braking effort, but the current developed is fed back into the overhead catenary rather thandissipated through resistance banks.
  5. (intransitive, colloquial, dated) To bedissolute inconduct.

Derived terms

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Related terms

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Translations

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disperseseedisperse
to drive away
to use up or waste
to vanish
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions atWiktionary:Entry layout § Translations.
Translations to be checked

Further reading

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Italian

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Etymology 1

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Verb

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dissipate

  1. inflection ofdissipare:
    1. second-personpluralpresentindicative
    2. second-personpluralimperative

Etymology 2

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Participle

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dissipate pl

  1. feminineplural ofdissipato

Latin

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Verb

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dissipāte

  1. second-personpluralpresentactiveimperative ofdissipō
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