Definition of decelerate in US English:



  • Reduce or cause to reduce in speed.

    no object ‘the train began to decelerate’
    with object ‘four steps are required to decelerate the motor’
    • ‘The train decelerated as it approached the station and the ride was over.’
    • ‘Future cars could decelerate, brake or swerve of their own accord.’
    • ‘Local consumer spending is likely to decelerate as the unemployment rate, which edged up to 4.7% in the May-July period, tends to rise further, he said.’
    • ‘As you decelerate, the brakes get noticeably softer in the fraction of a second before the car stops.’
    • ‘While economies are decelerating quickly, inflation rates are picking up virtually everywhere.’
    • ‘When it is dry, a person can safely decelerate at the rate of 15 feet per second per second (fpsps).’
    • ‘In the meantime, the real GDP rate of growth decelerated sharply in Q4.’
    • ‘Four minutes and 45 seconds after liftoff the capsule will begin decelerating by extending a set of speed brakes located near the nose of the capsule.’
    • ‘House price inflation is decelerating, which will slow the rate of growth in the average mortgage size.’
    • ‘World trade growth also decelerated sharply, commodity prices fell and deflation affected much of the world economy.’
    • ‘Coronary heart disease mortality in women from both countries increased with age, and in both countries the death rate in men decelerated at older ages, reducing the magnitude of the sex difference.’
    • ‘Industrial growth decelerated from 8.6 to 4.5 per cent.’
    • ‘Even though the corporate credit growth has been decelerating over the last three years, retail loans continue to grow at a very high rate.’
    • ‘This would pose a serious problem if exports, the main growth engine, decelerate, as is expected when the U.S. economy slows further in the coming months.’
    • ‘This summer, I think the GDP will probably decelerate; interest rates will continue to go up until the end of the year.’
    • ‘At each location, the speeds were measured for 100 vehicles that were in free-flow conditions and had not yet started decelerating before arriving at the speed hump.’
    • ‘A computer model will then assess each person's potential tolerance to injury and adjust the force of their seatbelt accordingly, so it ‘gives’ a little once the brakes are applied and the car begins to decelerate.’
    • ‘Suddenly, the throttle pedal pushes back hard at you causing you to decelerate to the speed limit.’
    • ‘With actual GDP growth far below the economy's growth potential, the unemployment rate should be rising and wage growth should be decelerating.’
    • ‘The rate of GDP growth can decelerate and even shift into reverse in those countries in which the rate of workforce decline exceeds productivity growth.’
    slow down, slow up, slow, go slower, ease up, slack up, reduce speed, lessen one's speed, brake, put the brakes on, hit the brakes
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Late 19th century: from de- (expressing removal) + a shortened form of accelerate.