- to decrease the velocity of: He decelerates the bobsled when he nears a curve.
- to slow the rate of increase of: efforts to decelerate inflation.
- to slow down: The plane decelerated just before landing.
Origin of decelerate
Examples from the Web for deceleration
Deceleration sat on their chests and squeezed their bones to rubber.The K-Factor
Harry Harrison (AKA Henry Maxwell Dempsey)
It would still take four hours to get down, in a spiral of deceleration.Space Viking
Henry Beam Piper
Casker nodded and punched a deceleration spiral into the ship's tape.One Man's Poison
The ship quivered for just a second as it shifted over into deceleration.An Empty Bottle
Ekstrohm fingered loose the cinches of his deceleration couch.The Planet with No Nightmare
- to slow down or cause to slow down
Word Origin and History for deceleration
1894, originally in railroading, coined from de- "do the opposite of" (see de-) + (ac)celeration.
Verily "deceleration" is a word which could only be coined by the Great Western. ["Engineering," Feb. 2, 1894]
1899, back-formation from deceleration. Related: Decelerated; decelerating.