Definitions

from The Century Dictionary.

  • noun The decrease of velocity: opposed to acceleration.

from the GNU version of the Collaborative International Dictionary of English.

  • noun a decrease in velocity. Opposite of acceleration

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun uncountable The act or process of decelerating.
  • noun countable The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the act of decelerating; decreasing the speed
  • noun a decrease in rate of change
  • noun (physics) a rate of decrease in velocity

Etymologies

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