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• n  a decrease in rate of change
  the deceleration of the arms race
• n  (physics) a rate of decrease in velocity
• n  the act of decelerating; decreasing the speed
  he initiated deceleration by braking

• Picked up by a receiver above ground, the data are plotted on deceleration v.
• Aboard a rocket ship, for instance, every part must be as compact as possible and also be capable of surviving the shock of sudden acceleration and deceleration.
• Along with a team of colleagues, he wanted to measure the cosmic slowdown, known formally as the "deceleration parameter.

• slowing
• retardation

• acceleration

News & Articles

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• US Auto Parts Imports Grow But at Slower Pace
  Containers of auto parts imported through U.S. ports in the first quarter of 2013 were up year-over-year for a 14th straight quarter. Although the rate inched up from 8.1 percent in fourth quarter 2012 to 8.3 percent in first quarter 2013, the rate of growth has formed an overall trend of deceleration.
  June 11, 2013 - Journal of Commerce Online
• Route 9 construction could cause delays in Marlboro
  MARLBORO — Construction work along Route 9 could cause some delays in traffic for the southbound lane motorists. The deceleration lane will be closed until 3 p.m. today north of Union Hill Road.
  June 10, 2013 - Asbury Park Press

Quotes

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• Robert Shiller in USA Today
  The further deceleration in prices is still apparent across the majority of regions,MacroMarkets Chief Economist Robert Shiller said in a statement.
• Ben Bernanke in Forbes
  The deceleration in economic activity currently under way appears to be taking place roughly along the lines envisioned,Bernanke said in his most extensive comments on the economy since the summer.