acceleration

UK/әk.selә'reiʃәn/US

TOEFLB2

Definitions

The act or process of speeding up

加速；加快

(physics) the rate of change of velocity

（物理）加速度（速度的变化率）

Root Breakdown

Root-derived

ac-together, with

celerswift, quick, speed

-ationact, process, state

=acceleration

Noun of accelerate. Everyday it means 'speeding up'; in physics it has a precise sense — the rate at which velocity changes — so even slowing down counts as (negative) acceleration.

Root cel still carries 7 more words

Common Collocations

1.rapid acceleration迅猛加速
2.acceleration of growth增长加速
3.due to acceleration由于加速度

Example Sentences

1.
This sports car is famous for its rapid acceleration.
2.
Acceleration is measured in meters per second squared.
3.
There has been a sharp acceleration in house prices.

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