decelerates, decelerating, decelerated
1) VERB When a vehicle or machine decelerates or when someone in a vehicle decelerates, the speed of the vehicle or machine is reduced.

The chauffeur kept accelerating and decelerating between 60 and 90 mph.

Derived words:
deceleration [[t]di͟ːse̱ləre͟ɪʃ(ə)n[/t]] N-UNCOUNT

The hydraulic system ensures that the harder the brake pedal is pressed, the greater the car's deceleration.

2) VERB When the rate of something such as inflation or economic growth decelerates, it slows down.

Inflation has decelerated remarkably over the past two years.

Derived words:
deceleration N-UNCOUNT

This is a significant deceleration from the 4.2% annual rate of growth between April and June.

English dictionary. 2008.

Look at other dictionaries:

  • decelerate — v. i. 1. 1 to reduce speed; as, The car decelerated. Opposite of {accelerate}. Syn: slow, slow down, slow up, retard. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • decelerate — v. t. to cause to reduce speed. Opposite of {accelerate}. Syn: slow down. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • decelerate — index decrease, diminish, hold up (delay), impede, moderate (temper), palliate (abate) …   Law dictionary

  • decelerate — UK US /ˌdiːˈseləreɪt/ verb [I ] ► to become slower: »Economic growth has decelerated from 4.5% in the first quarter to 3% in the second. »The report stated that the rise in house prices was decelerating. → Compare ACCELERATE(Cf. ↑accelerate)… …   Financial and business terms

  • decelerate — (v.) 1899, back formation from DECELERATION (Cf. deceleration). Related: Decelerated; decelerating …   Etymology dictionary

  • decelerate — ► VERB ▪ begin to move more slowly. DERIVATIVES deceleration noun …   English terms dictionary

  • decelerate — [dē sel′ər āt΄] vt., vi. decelerated, decelerating [ DE + (AC)CELERATE] to reduce the speed (of); slow down deceleration n. decelerator n …   English World dictionary

  • decelerate — verb ( ated; ating) Etymology: de + accelerate Date: 1899 transitive verb 1. to reduce the speed of ; slow down < decelerate a car > 2. to decrease the rate of progress of …   New Collegiate Dictionary

  • decelerate — UK [diːˈseləreɪt] / US [dɪˈseləˌreɪt] verb [intransitive] Word forms decelerate : present tense I/you/we/they decelerate he/she/it decelerates present participle decelerating past tense decelerated past participle decelerated formal to move,… …   English dictionary

  • decelerate — deceleration, n. decelerator, n. /dee sel euh rayt /, v., decelerated, decelerating. v.t. 1. to decrease the velocity of: He decelerates the bobsled when he nears a curve. 2. to slow the rate of increase of: efforts to decelerate inflation. v.i.… …   Universalium

  • decelerate — verb (I) technical to go slower, especially in a vehicle: Decelerate when approaching a corner. opposite accelerate deceleration noun (U) …   Longman dictionary of contemporary English

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