Definition of DECELERATION

deceleration

Plural: decelerations

Noun

  • a decrease in rate of change
    • "the deceleration of the arms race"
  • (physics) a rate of decrease in velocity
  • the act of decelerating; decreasing the speed
    • "he initiated deceleration by braking"
  • The act or process of decelerating.
  • The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity), an acceleration having a negative numerical value.

Examples

  • The brakes produce a deceleration of 10 metres per second.
  • The rocket is now in deceleration.

Origin / Etymology

From de- + (ac)celeration.

Synonyms

retardation, slowing

Antonyms

acceleration

Scrabble Score: 15

deceleration: valid Scrabble (US) TWL Word
deceleration: valid Scrabble Word in Merriam-Webster MW Dictionary
deceleration: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 18

deceleration: valid Words With Friends Word