acceleration

Definition from Wiktionary, a free dictionary

Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Noun 1.3.1 Usage notes 1.3.2 Antonyms 1.3.3 Translations 1.4 See also 2 Interlingua 2.1 Noun 3 Swedish 3.1 Noun

[edit] English

[edit] Etymology

• Latin acceleratio; compare French accélération
• accelerate + -tion

[edit] Pronunciation

• enPR: əksĕlərā'shən, IPA: /ək.sɛl.əˈreɪ.ʃən/, SAMPA: /@ksEl@"reIS@n/
•  Audio (US)^{help, file}

  Rhymes: -eɪʃǝn

[edit] 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

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.

   • A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration — Isaac Taylor
3. (physics) The change of velocity with respect to time (can include deceleration or changing direction).

[edit] 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).

[edit] Antonyms

• (act, state, amount):: deceleration, retardation

[edit] Translations

[edit] See also

• displacement
• velocity
• jerk

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[edit] Interlingua

[edit] Noun

acceleration

1. acceleration

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[edit] Swedish

[edit] Noun

Inflection for acceleration	Singular		Plural
common	Indefinite	Definite	Indefinite	Definite
Base form	acceleration	accelerationen	accelerationer	accelerationerna
Possessive form	accelerations	accelerationens	accelerationers	accelerationernas

acceleration c.

1. acceleration; a change in velocity