dissipate

dissipate

English

Etymology

From Middle English dissipate, from Latin dissipatus, past participle of dissipare, also written dissupare (“to scatter, disperse, demolish, destroy, squander, dissipate”), from dis- (“apart”) + supare (“to throw”), also in comp. insipare (“to throw into”).

Pronunciation

• IPA^(key): /ˈdɪsɪpeɪt/

• Audio (CA)

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Verb

dissipate (third-person singular simple present dissipates, present participle dissipating, simple past and past participle dissipated)

1. (transitive) To drive away, disperse.
   • August 1773, James Cook, journal entry

     I soon dissipated his fears.

   • 1817, William Hazlitt, The Round Table

     The extreme tendency of civilization is to dissipate all intellectual energy.

2. (transitive) To use up or waste; squander.
   • 1679–1715, Gilbert Burnet, “(please specify the page)”, in The History of the Reformation of the Church of England., London: […] T[homas] H[odgkin] for Richard Chiswell, […]:

     The vast wealth […] was in three years dissipated.

   • 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"—to dissipate 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 to dissipate the wealth of Egypt.

3. (intransitive) To vanish by dispersion.
4. (physics) To cause energy to be lost through its conversion to heat.
   • 1960 April, “English Electric diesels for the Sudan Railways”, in Trains Illustrated, page 218:

     The traction motors serve as generators when dynamic braking is used, the generated output being dissipated in fan-cooled resistance banks mounted in a removable roof section.

5. (intransitive, colloquial, dated) To be dissolute in conduct.

Related terms

• dissipation

Translations

to dissipate — see disperse

to drive away

Armenian: ցրել (hy) (cʿrel) Bulgarian: разсейвам (bg) (razsejvam), разпръсквам (bg) (razprǎskvam) Czech: rozptýlit Dutch: verdrijven (nl) German: zerstreuen (de), zerteilen (de), verscheuchen (de), lösen (de), abbauen (de), zersplittern (de), dissipieren Italian: dissipare (it)

to use up or waste

Bulgarian: пропилявам (bg) (propiljavam) Dutch: verbruiken (nl);verspillen (nl), verkwisten (nl) German: aufbrauchen (de), verbrauchen (de), abbauen (de), auflösen (de), verschwenden (de), vergeuden (de), ableiten (de), verprassen (de), verzetteln (de), verschleudern (de) Greek: διαχέω (el) (diachéo) Ido: disipar (io)

to vanish

Dutch: verdwijnen (nl) German: verschwinden (de), abführen (de), verflüchtigen (de), sich auflösen, sich zerteilen, sich zerstreuen Maori: memeha Swedish: skingra (sv)

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

French: (2,3) (please verify) dissiper (fr) Ido: (2) (please verify) disipar (io), (3) (please verify) dispersar (io) Kannada: (please verify) ಬೀರು (kn) (bīru)

Further reading

• dissipate in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• dissipate in The Century Dictionary, New York, N.Y.: The Century Co., 1911
• “dissipate”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

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Italian

Verb

dissipate

1. inflection of dissipare:
   1. second-person plural present indicative
   2. second-person plural imperative

Participle

dissipate f pl

1. feminine plural of dissipato

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Latin

Verb

dissipāte

1. second-person plural present active imperative of dissipō