acceleration
Americannoun
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the act of accelerating; increase of speed or velocity.
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a change in velocity.
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Mechanics. the time rate of change of velocity with respect to magnitude or direction; the derivative of velocity with respect to time.
noun
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the act of accelerating or the state of being accelerated
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a. the rate of increase of speed or the rate of change of velocity
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a. the power to accelerate
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The rate of change of the velocity of a moving body. An increase in the magnitude of the velocity of a moving body (an increase in speed) is called a positive acceleration; a decrease in speed is called a negative acceleration. Acceleration, like velocity, is a vector quantity, so any change in the direction of a moving body is also an acceleration. A moving body that follows a curved path, even when its speed remains constant, is undergoing acceleration.
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See more at gravity relativity
Discover More
The most familiar kind of acceleration is a change in the speed of an object. An object that stays at the same speed but changes direction, however, is also being accelerated. (See force.)
Other Word Forms
- nonacceleration noun
- overacceleration noun
- reacceleration noun
Etymology
Origin of acceleration
First recorded in 1525–35, acceleration is from the Latin word accelerātiōn- (stem of accelerātiō ). See accelerate, -ion
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
That could drive a significant acceleration in revenue growth for the cloud platform, he wrote.
From MarketWatch
Oracle recently outlined in a regulatory filing that it would spend $500 million more on restructuring costs in the current fiscal year than previously reported, suggesting an acceleration in its job-cutting program.
Its total addressable market expansion in mid-2025 and commentary around bookings growth on the latest earnings call mark a shift from recovery to what Visser described as “compounding acceleration”
From Barron's
"He has very good acceleration and technique. The boy will give us joy."
From BBC
He thinks this was one factor that prevented Adobe from showing an acceleration in annual-recurring-revenue growth last quarter.
From MarketWatch
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.