acceleration

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See also: accélération

English

Alternative forms

Etymology

First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate +‎ -ion.

Pronunciation

  • enPR: əksĕlərā'shən, IPA(key): /ək.ˌsɛl.ə.ˈɹeɪ.ʃən/, /æk.ˌsɛl.ə.ˈɹeɪ.ʃən/, /ɪk.ˌsɛl.ə.ˈɹeɪ.ʃən/
  • Audio (US)(file)
  • Rhymes: -eɪʃən

Noun

acceleration (countable and uncountable, plural accelerations)

  1. (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
    a falling body moves toward the earth with an acceleration of velocity
    • 2022 January 12, Nigel Harris, “Comment: Unhappy start to 2022”, in RAIL, number 948, page 3:
      On the East and West Coast Main Lines in the 1950s/60s, for example, we saw the extinction of intermediate stations in order to create the same sort of accelerations that IRP is now promising. Back then, the priority was faster main line services, with wayside/intermediate stations paying the ultimate price.
  2. (countable) The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
    The boosters produce an acceleration of 20 metres per second per second.
    • 1859-1860, Isaac Taylor, Ultimate Civilisation:
      A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration […]
  3. (physics) The change of velocity with respect to time (can include deceleration or changing direction).
  4. The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.

Usage notes

Acceleration in SI units is measured in metres per second per second (m/s2), or in imperial units in feet per second per second (ft/s2).

Antonyms

Derived terms

Translations

See also

References

  1. ^ Elliott K. Dobbie, C. William Dunmore, Robert K. Barnhart, et al. (editors), Chambers Dictionary of Etymology (Chambers Harrap Publishers Ltd, 2004 , →ISBN), page 6

Danish

Noun

acceleration c (singular definite accelerationen, plural indefinite accelerationer)

  1. acceleration

Declension

Declension of acceleration
common
gender 		Singular Plural
indefinite definite indefinite definite
nominative acceleration accelerationen accelerationer accelerationerne
genitive accelerations accelerationens accelerationers accelerationernes

Further reading

Interlingua

Noun

acceleration (plural accelerationes)

  1. acceleration

Swedish

Etymology

accelerera +‎ -tion

Noun

acceleration c

  1. acceleration; a change in velocity

Declension

Declension of acceleration 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative acceleration accelerationen accelerationer accelerationerna
Genitive accelerations accelerationens accelerationers accelerationernas
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