Pronunciation: (dē-sel'u-rāt"), [key]
—v., -at•ed, -at•ing.
1. to decrease the velocity of: He decelerates the bobsled when he nears a curve.
2. to slow the rate of increase of: efforts to decelerate inflation.
to slow down: The plane decelerated just before landing.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.