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Webster 1913 Edition


Impetus

Im′pe-tus

(ĭm′pē̍-tŭs)
,
Noun.
[L., fr.
impetere
to rush upon, attack; pref.
im-
in +
petere
to fall upon, seek. See
Petition
.]
1.
A property possessed by a moving body in virtue of its weight and its motion; the force with which any body is driven or impelled; momentum.
Momentum is the technical term, impetus its popular equivalent, yet differing from it as applied commonly to bodies moving or moved suddenly or violently, and indicating the origin and intensity of the motion, rather than its quantity or effectiveness.
3.
(Gun.)
The altitude through which a heavy body must fall to acquire a velocity equal to that with which a ball is discharged from a piece.

Webster 1828 Edition


Impetus

IM'PETUS

,
Noun.
[L. supra.] Force of motion; the force with which any body is driven or impelled.
1.
The force with which one body in motion strikes another.

Definition 2022


impetus

impetus

See also: ímpetus

English

Noun

impetus (plural impetuses)

  1. Something that impels, a stimulating factor.
    The outbreak of World War II in 1939 gave a new impetus to receiver development.
    • 2011, Phil McNulty, Euro 2012: Montenegro 2-2 England
      In a single moment Montenegro and their supporters were given fresh impetus and encouragement. Beciraj tested Hart with a low shot before teenager Phil Jones, on his England debut, suffered an anxious moment when Stevan Jovetic went down under his challenge, leaving the youngster clearly relieved to see referee Stark wave away Montenegro's appeals.
  2. A force, either internal or external, that impels; an impulse.
  3. The force or energy associated with a moving body; a stimulus.
  4. An activity in response to a stimulus.

Translations

Related terms

See also

Anagrams


Latin

Etymology

From impetō (to rush upon, attack), from in- (upon) + petō (to seek, fall upon).

Pronunciation

  • (Classical) IPA(key): /ˈim.pe.tus/, [ˈɪm.pɛ.tʊs]

Noun

impetus m (genitive impetūs); fourth declension

  1. an attack
  2. a rapid motion
  3. a making for

Inflection

Fourth declension.

Case Singular Plural
nominative impetus impetūs
genitive impetūs impetuum
dative impetuī impetibus
accusative impetum impetūs
ablative impetū impetibus
vocative impetus impetūs

Descendants

References