DECELERATION

deceleration

(noun) the act of decelerating; decreasing the speed; “he initiated deceleration by braking”

deceleration, slowing, retardation

(noun) a decrease in rate of change; “the deceleration of the arms race”

deceleration

(noun) (physics) a rate of decrease in velocity

Source: WordNet® 3.1

Noun

deceleration (countable and uncountable, plural decelerations)

(uncountable) The act or process of decelerating.

(countable) The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity).

Antonyms

• (act or process of decelerating): acceleration

Source: Wiktionary

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