[ dee-sel-uh-rey-shuhn ]
/ diˌsɛl əˈreɪ ʃən /
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the fact of losing speed, or the act of reducing the speed of something: Prolonged deceleration of the fetal heart rate is cause for concern.
the act or process of slowing the rate of increase of something:During that quarter, job creation stalled and stocks fell, confirming that there was a deceleration in the economy.
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Origin of deceleration

OTHER WORDS FROM deceleration

non·de·cel·er·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023


What does deceleration mean?

Deceleration describes a decrease in velocity, that is, momentum.

Deceleration describes the slowing of an increase. Wind, for example, moves with a certain amount of momentum. When the wind’s momentum slows down, that is, the wind doesn’t blow as hard, we can say that the wind is experiencing deceleration.

Example: The deceleration of the ship came abruptly to the passengers.

Where does deceleration come from?

The first records of the term deceleration come from around 1897. It combines the verb decelerate, meaning “to slow the rate of increase” with the suffix ation, which forms nouns from verbs that end in –ate, such as separation. Deceleration is the action of slowing the rate of an increase.

Deceleration is often used in reference to the velocity of a vehicle or person. Sometimes it can be used to describe slowing the rate of something, such as a statistic or percentage.

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What are some other forms related to deceleration?

  • nondeceleration (noun)

What are some synonyms for deceleration?

What are some words that share a root or word element with deceleration?

What are some words that often get used in discussing deceleration?

How is deceleration used in real life?

Deceleration is usually used in an engineering or other scientific setting.



Try using deceleration!

Which of the following is NOT a synonym for deceleration?

A. slowing
B. dropoff
C. acceleration
D. decline

How to use deceleration in a sentence