deceleration

Noun
  1. A decrease in rate of change (synset 105068514)
    "the deceleration of the arms race"
    is a type of: alteration, change, modification - an event that occurs when something passes from one state or phase to another
    same as: retardation, slowing
  2. (physics) a rate of decrease in velocity (synset 115301157)
    referred to in: natural philosophy, physics - the science of matter and energy and their interactions
    is a type of: rate - a magnitude or frequency relative to a time unit
  3. The act of decelerating;
    Decreasing the speed (synset 100331500)
    "he initiated deceleration by braking"
    is a type of: hurrying, speed, speeding - changing location rapidly

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