acceleration

nounattested in dialogue

//əkˌsɛl.əˈɹeɪ.ʃən//
//ækˌsɛl.əˈɹeɪ.ʃən//
//ɪkˌsɛl.əˈɹeɪ.ʃən//

The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

noun

1
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.
If you hear flutter on acceleration, it is dangerous surge.
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
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 […]
3
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.

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin celerō Latin accelerō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin accelerātiōder. English acceleration First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate + -ion.

Forms

plural: accelerations

accelerate · To cause to move faster; to quicken the motion of; to add to…accelerated · Moving or progressing faster than is usual.accelerating · An act of acceleration.

acceleration · The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

accelerator · One who, or that which, accelerates.accent · A higher-pitched or stronger (louder or longer) articulation…accept · To receive, especially with a consent, with favour, or with…

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