Definition of impetus in English:

impetus

Line breaks: im|petus
Pronunciation: /ˈɪmpɪtəs
 
/

noun

[mass noun]
  • 1The force or energy with which a body moves: hit the booster coil before the flywheel loses all its impetus
    More example sentencesSynonyms
    momentum, propulsion, impulsion, impelling force, motive force, driving force, drive, thrust, continuing motion; energy, force, power, push, steam, strength
  • 1.1Something that makes a process or activity happen or happen more quickly: the ending of the Cold War gave new impetus to idealism
    More example sentences
    • The requirements of homogeneous diesel combustion processes give additional impetuses to the continued development of piezo controls for unit injector systems.
    • The expanded literature search was very coincident with the initial search, providing most of the same reasons, purposes, and impetuses for developing peer institution selection systems.
    • One of the most interesting points to emerge is a recognition that with hindsight, European radicalism has once again written itself as a form of diffusionism, its sources and impetuses exclusive unto itself.
    Synonyms
    motivation, stimulus, incitement, incentive, inducement, inspiration, encouragement, boost; urging, pressing, goading, spurring, prodding
    informal a shot in the arm

Origin

mid 17th century: from Latin, 'assault, force', from impetere 'assail', from in- 'towards' + petere 'seek'.

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