the act of accelerating; increase of speed or velocity.
a change in velocity.
Mechanics. the time rate of change of velocity with respect to magnitude or direction; the derivative of velocity with respect to time.
- non·ac·cel·er·a·tion, noun
- o·ver·ac·cel·er·a·tion, noun
- re·ac·cel·er·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use acceleration in a sentence
Companies are finding new ways to do business, and in the process we’re seeing an acceleration of technologies that, though they were already in the pipeline, would have taken several more years to really pick up speed.Walmart Is Piloting Drone Delivery in North Carolina | Vanessa Bates Ramirez | September 11, 2020 | Singularity Hub
There’s huge swaths of our society that will be completely left behind by the acceleration of these technological trends.
The acceleration of digitization, the re-thinking of offices, the increasing involvement of stakeholders on issues like safety and diversity, have created a greater need and desire by executives to convene and share ideas and best practices.Fortune has a full fall of virtual events coming up | Alan Murray | September 8, 2020 | Fortune
If you want powerful, fast acceleration from a dead stop to get up to speed in traffic or with heavy loads, a Class 2 throttle-assist bike with a motor that has a max torque of 60 Newton-meters or higher might be the right approach.Do You Want to Buy an E-Cargo Bike? Read This First. | Joe Lindsey | August 30, 2020 | Outside Online
Meanwhile, direct-to-consumer sales are up 1,400 percent from the same time last year, a surge Wolfe Pereira attributes to “the acceleration of e-commerce.”Your Kids Need a Dose of Bilingual Culture? He Can Help | Nick Fouriezos | August 9, 2020 | Ozy
One rapid acceleration per day adds up to $365 in additional fuel costs per year.
The three most fuel-costly activities are rough braking, rapid acceleration, and speeding above 70 mph.
And if the effect of acceleration was stronger in some patches than others, that would mean less or more clumping up of galaxies.Using Black Holes to Measure Dark Energy, Like a BOSS | Matthew R. Francis | April 13, 2014 | THE DAILY BEAST
That return, and that acceleration, are not coincidences either.Ukraine Is On the Verge Of War And Putin Is To Blame | Michael Weiss | February 20, 2014 | THE DAILY BEAST
It has three sensors which track steps, acceleration, and altitude.
I lay there, the increasing acceleration pressing me hard against the cool metal.Valley of the Croen | Lee Tarbell
On a curved bridge the centrifugal load due to the radical acceleration of the train.
The function of this plunger is to provide a resistance in addition to that of the air valve spring to assist in acceleration.Marvel Carbureter and Heat Control | Anonymous
You do not really employ that barbarous method of acceleration?The Adventures of Harry Revel | Sir Arthur Thomas Quiller-Couch
"All the other Gerns are by now in their acceleration couches," he said.Space Prison | Tom Godwin
British Dictionary definitions for acceleration
the act of accelerating or the state of being accelerated
the rate of increase of speed or the rate of change of velocity: Symbol: a
the power to accelerate: Symbol: a
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for acceleration
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. See more at gravity relativity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for acceleration
A change in the velocity of an object.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.