Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “acceleration”

acceleration

noun [U]  /ɪkˌsel·əˈreɪ·ʃən, æk-/ us  

acceleration noun [U] (INCREASE RATE)

physics the rate of change in the speed of something over time

acceleration noun [U] (GO FASTER)

the rate at which something moves more quickly or happens faster or sooner: The car has good acceleration.
(Definition of acceleration from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of acceleration?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “acceleration”

Definitions of “acceleration” in other dictionaries

Word of the Day

first:

(a person or thing) coming before all others in order, time, amount, quality, or importance

Word of the Day

Countability – grammar codes

by Dom Glennon​​,
November 26, 2014
Advices and informations Have you ever noticed strange codes in square brackets on entries in Cambridge Dictionaries Online and wondered what they mean? These are grammar codes, giving you a brief summary of how that word behaves grammatically. More information can be obtained by hovering your cursor over the code, and there’s

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More