impulse

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See also: impulsé and Impulse

English[edit]

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Etymology[edit]

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.

Pronunciation[edit]

  • (file)

Noun[edit]

impulse (plural impulses)

  1. A thrust; a push; a sudden force that impels.
    • S. Clarke
      All spontaneous animal motion is performed by mechanical impulse.
  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 dictionary, I couldn't resist the impulse to browse through it.
    • Dryden
      These were my natural impulses for the undertaking.
    • 1907, Harold Bindloss, chapter 20, 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, [] .”
  3. (physics) The integral of force over time.
    The total impulse from the impact will depend on the kinetic energy of the bullet.

Derived terms[edit]

Related terms[edit]

Translations[edit]

References[edit]

Verb[edit]

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

  1. (obsolete) To impel; to incite.
    (Can we find and add a quotation of Alexander Pope to this entry?)



French[edit]

Pronunciation[edit]

Verb[edit]

impulse

  1. first-person singular present indicative of impulser
  2. third-person singular present indicative of impulser
  3. first-person singular present subjunctive of impulser
  4. first-person singular present subjunctive of impulser
  5. second-person singular imperative of impulser

Italian[edit]

Verb[edit]

impulse

  1. third-person singular past historic of impellere

Latin[edit]

Participle[edit]

impulse

  1. vocative masculine singular of impulsus

Spanish[edit]

Verb[edit]

impulse

  1. First-person singular (yo) present subjunctive form of impulsar.
  2. Formal second-person singular (usted) present subjunctive form of impulsar.
  3. Third-person singular (él, ella, also used with usted?) present subjunctive form of impulsar.