English Dictionary

Definition of “impulse

impulse (ˈɪmpʌlsPronunciation for impulse

Definitions

noun

  1. an impelling force or motion; thrust; impetus
  2. a sudden desire, whim, or inclination  ⇒ I bought it on an impulse 
  3. an instinctive drive; urge
  4. tendency; current; trend
  5. physics 
    1. the product of the average magnitude of a force acting on a body and the time for which it acts
    2. the change in the momentum of a body as a result of a force acting upon it for a short period of time
  6. physiology See nerve impulse
  7. electronics a less common word for pulse1 (sense 2)
  8. See on impulse

Word Origin

C17: from Latin impulsus  a pushing against, incitement, from impellere to strike against; see impel

Quotations

  • "I am the very slave of circumstanceAnd impulse - borne away with every breath!" Lord Byron
  • "To our strongest impulse, to the tyrant in us, not only our reason but also our conscience yields" Friedrich Nietzsche
  • "Have no truck with first impulses for they are always generous ones" Casimir, Comte de Montrond

Usage examples

  • It's always my impulse to refuse to take obvious facts at their face value.
    Harcourt, Palma, Double Deceit (1990)
  • This is a fitting end for a minister who has made a career by presenting herself as governed by impulse rather than political interest.
    Spiked (2003)
  • A close second is his highly cultivated, and as genuine as Jello, impulse to speak his mind.
    Globe and Mail (2003)
  • Pal Rachel Thompson 29, said: `She always did act on impulse.
    Sun, News of the World (2000)
  • The writer is unable to think clearly or purposefully, is often weak-willed and tends to act on impulse.
    Cameron, Ellen, An Introduction to Graphology (1989)

Browse dictionary