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 <
decelerate growth
decelerate soil erosion
intransitive verb to move at decreasing speed • deceleration noundecelerator noun

New Collegiate Dictionary. 2001.

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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 — 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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