Longman Dictionary of Contemporary English homepage

acceleration

 noun
     
Related topics: Motor Vehicles
ac‧cel‧e‧ra‧tion
1 [singular, uncountable] a process in which something happens more and more quickly
acceleration in
an acceleration in the rate of inflation
acceleration of
the rapid acceleration of economic progress in South East Asia
2 [uncountable]TTC the rate at which a car or other vehicle can go faster:
The latest model has excellent acceleration.
3 [uncountable] technical the rate at which the speed of an object increases
Definition from the Longman Dictionary of Contemporary English
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