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impulse

noun

  1. integral of a force, F, over the time interval, t, for which it acts; term in classical mechanics
  2. term in psychology
L4609 on Wikidata ↗

Wiktionary

Pronunciation: /ˈɪmpʌls/

noun

Etymology: Borrowed from Middle French impulser, from Latin impulsus.

  1. A thrust; a push; a sudden force that impels.

    c. 1715-1716, Samuel Clarke, letter to Gottfried Wilhelm Leibniz 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 book, I couldn't resist the impulse to browse through it.

  3. The integral of force over time.

    The total impulse from the impact will depend on the kinetic energy of the projectile.

verb

Etymology: Borrowed from Middle French impulser, from Latin impulsus.

  1. To impel; to incite.

    With that force so impulsed and prest they are carried under the deepe Ocean.