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acceleration

From Wiktionary, the free dictionary
See also:accélération

English

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Alternative forms

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Etymology

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Etymology tree
Proto-Indo-European*h₂éd
Proto-Italic*ad
Proto-Italic*ad-
Latinad-
Proto-Indo-European*kel-der.
Latinceler
Proto-Indo-European*-h₂
Proto-Indo-European*-éh₂
Proto-Indo-European*-yéti
Proto-Indo-European*-eh₂yéti
Proto-Italic*-āō
Latin-ō
Latincelerō
Proto-Indo-European*-tisder.
Proto-Italic*-tjō
Latin-tiō
Englishacceleration

    First attested in 1531. FromFrenchaccélération or more likely directly fromLatinaccelerātiō(“a hastening, acceleration”).[1] Equivalent toaccelerate +‎-ion.

    Pronunciation

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    • enPR:əksĕlərā'shən,IPA(key): /əkˌsɛl.əˈɹeɪ.ʃən/,/ækˌsɛl.əˈɹeɪ.ʃən/,/ɪkˌsɛl.əˈɹeɪ.ʃən/
    • Audio(US):(file)
    • Rhymes:-eɪʃən
    • Hyphenation:ac‧ce‧le‧ra‧tion

    Noun

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    acceleration (countable anduncountable,pluralaccelerations)

    1. (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed toretardation ordeceleration.
      A falling body moves toward the earth with anacceleration of velocity.
      • 2022 January 12, Nigel Harris, “Comment: Unhappy start to 2022”, inRAIL, number948, 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 ofaccelerations 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 aspeed orvelocity increases (and so ascalar quantity or avector quantity).
      The boosters produce anacceleration 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 ofacceleration[…]
    3. (physics) The change ofvelocity with respect totime (can includedeceleration or changingdirection).
    4. Theadvancement ofstudents at a rate that places them ahead of where they would be in the regular schoolcurriculum.

    Usage notes

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    Acceleration inSI units is measured inmetres per second per second (m/s2), or inimperial units in feet per second per second (ft/s2).

    Antonyms

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    Derived terms

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    Translations

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    act or state
    amount
    change of velocity with respect to time
    education

    See also

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    References

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    1. ^Elliott K. Dobbie, C. William Dunmore, Robert K. Barnhart, et al. (editors),Chambers Dictionary of Etymology (Chambers Harrap Publishers Ltd, 2004 [1998],→ISBN), page 6

    Danish

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    Noun

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    acceleration c (singular definiteaccelerationen,plural indefiniteaccelerationer)

    1. acceleration

    Declension

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    Declension ofacceleration
    common
    gender    		singularplural
    indefinitedefiniteindefinitedefinite
    nominativeaccelerationaccelerationenaccelerationeraccelerationerne
    genitiveaccelerationsaccelerationensaccelerationersaccelerationernes

    Further reading

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    Interlingua

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    Noun

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    acceleration (pluralaccelerationes)

    1. acceleration

    Swedish

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    SwedishWikipedia has an article on:
    Wikipediasv

    Etymology

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    accelerera +‎-tion

    Noun

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    acceleration c

    1. acceleration (increase or increasing of speed, of something concrete or abstract)
    2. (physics)acceleration

    Declension

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    Declension ofacceleration
    nominativegenitive
    singularindefiniteaccelerationaccelerations
    definiteaccelerationenaccelerationens
    pluralindefiniteaccelerationeraccelerationers
    definiteaccelerationernaaccelerationernas

    Related terms

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    References

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