decelerate

verb
de·​cel·​er·​ate | \ (ˌ)dē-ˈse-lə-ˌrāt How to pronounce decelerate (audio) \
decelerated; decelerating

Definition of decelerate

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

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Other Words from decelerate

deceleration \ (ˌ)dē-​ˌse-​lə-​ˈrā-​shən How to pronounce deceleration (audio) \ noun
decelerator \ (ˌ)dē-​ˈse-​lə-​rā-​tər How to pronounce decelerator (audio) \ noun

Synonyms & Antonyms for decelerate

Synonyms

Antonyms

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Examples of decelerate in a Sentence

she decelerated the car as we entered the school zone
Recent Examples on the Web The Evenflo side-impact tests, by contrast, were conducted on a bench resembling a vehicle’s seat that moves at 20 miles per hour and is suddenly decelerated. Daniela Porat, ProPublica, "Evenflo, Maker of the “Big Kid” Booster Seat, Put Profits Over Child Safety," 6 Feb. 2020 Investors have punished other highflying stocks in the sector when growth has decelerated. Charley Grant, WSJ, "Medical-Device Stocks Risk Short-Term Heartbreak," 27 Jan. 2020 Growth in retail spending decelerated to 8% over a year earlier, down from 8.2% in the first nine months of the year. Joe Mcdonald, USA TODAY, "China's 2019 economic growth weakens amid trade war," 17 Jan. 2020 The pace of formal job creation has decelerated over the past year. The Economist, "Mexico’s radical president serves up economic mediocrity," 7 Nov. 2019 Heavier neutrinos would have decelerated sooner and helped make the universe clumpier. Quanta Magazine, "How the Neutrino’s Tiny Mass Could Help Solve Big Mysteries," 15 Oct. 2019 At traditional muzzle velocities, 1 ½ ounces of steel quickly decelerates to mere feather-ruffling speed. John M. Taylor, Outdoor Life, "Best Duck Loads: How to Pick the Right Shell for the Right Bird," 30 Sep. 2019 To decelerate this cooling process, some chefs insulate meat from kitchen air with a vacuumed sous vide in a precisely heated water bath. Molly Glick, Popular Science, "A food scientist breaks down the thermodynamics between marshmallows and hot chocolate," 13 Jan. 2020 Is a very nuanced route runner with the ability to change speeds in and out of his breaks. Able to decelerate on comeback routes. Tim Bielik, cleveland, "Joe Royer National Signing Day 2020 player profile: Ohio State football recruiting," 16 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decelerate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of decelerate

1899, in the meaning defined at transitive sense 1

History and Etymology for decelerate

de- + accelerate

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Time Traveler for decelerate

Time Traveler

The first known use of decelerate was in 1899

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Statistics for decelerate

Last Updated

15 Feb 2020

Cite this Entry

“Decelerate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decelerate. Accessed 26 Feb. 2020.

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More Definitions for decelerate

decelerate

verb
How to pronounce decelerate (audio)

English Language Learners Definition of decelerate

: to move slower : to lose speed
: to cause (something) to happen more slowly

decelerate

verb
de·​cel·​er·​ate | \ dē-ˈse-lə-ˌrāt How to pronounce decelerate (audio) \
decelerated; decelerating

Kids Definition of decelerate

: to slow down The car decelerated at the yellow light.

decelerate

verb
de·​cel·​er·​ate | \ (ˈ)dē-ˈsel-ə-ˌrāt How to pronounce decelerate (audio) \
decelerated; decelerating

Medical Definition of decelerate

transitive verb

: to reduce the speed of : slow down

intransitive verb

: to move at decreasing speed

Other Words from decelerate

deceleration \ (ˌ)dē-​ˌsel-​ə-​ˈrā-​shən How to pronounce deceleration (audio) \ noun

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Comments on decelerate

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