impulse

See also: impulsé and Impulse

EnglishEdit

 
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EtymologyEdit

Borrowed from Middle French impulser, from Latin impulsus.

For spelling, as in pulse, the -e (on -lse) is so the end is pronounced /ls/, rather than /lz/ as in pulls, and does not change the vowel (‘u’). Compare else, false, convulse.

PronunciationEdit

  • IPA(key): /ˈɪmpʌls/
  • (file)
  • Hyphenation: im‧pulse

NounEdit

impulse (plural impulses)

  1. A thrust; a push; a sudden force that impels.
  2. A wish or urge, particularly a sudden one prompting action.
    The impulse to learn drove me to study night and day.
    When I saw the new book, I couldn't resist the impulse to browse through it.
    • 1685, John Dryden, transl., “Preface”, in Sylvæ: Or, The Second Part of Poetical Miscellanies, London: [] Jacob Tonson, [], OCLC 1139916864; reprinted Menston, Yorkshire; London: Scolar Press, 1973, →ISBN, page 16:
      Theſe were my natural Impulses for the undertaking: []
    • 1907, Harold Bindloss, chapter 20, in The Dust of Conflict[1]:
      Tony's face expressed relief, and Nettie sat silent for a moment until the vicar said “It was a generous impulse, but it may have been a momentary one, [] .”
    • 1930, Norman Lindsay, Redheap, Sydney: Ure Smith, published 1965, page 218:
      An impulse urged him to plant a sudden blow on it, by he forced himself to consider the impolicy of such an act.
  3. (physics) The integral of force over time.
    The total impulse from the impact will depend on the kinetic energy of the projectile.

Derived termsEdit

Related termsEdit

TranslationsEdit

VerbEdit

impulse (third-person singular simple present impulses, present participle impulsing, simple past and past participle impulsed)

  1. (transitive) To impel; to incite.

ReferencesEdit


FrenchEdit

PronunciationEdit

VerbEdit

impulse

  1. inflection of impulser:
    1. first/third-person singular present indicative/subjunctive
    2. second-person singular imperative

ItalianEdit

VerbEdit

impulse

  1. third-person singular past historic of impellere

LatinEdit

ParticipleEdit

impulse

  1. vocative masculine singular of impulsus

SpanishEdit

PronunciationEdit

  • IPA(key): /imˈpulse/, [ĩmˈpul.se]

VerbEdit

impulse

  1. inflection of impulsar:
    1. first/third-person singular present subjunctive
    2. third-person singular imperative