1. deceleration(n = noun.attribute) retardation, slowing - a decrease in rate of change; "the deceleration of the arms race"
is a kind of alteration, change, modification
Antonym: acceleration
Derived forms verb decelerate2, verb decelerate1
2. deceleration(n = noun.time) Array - (physics) a rate of decrease in velocity; Array
is a kind of rate
Antonym: acceleration
3. deceleration(n = noun.act) Array - the act of decelerating; decreasing the speed; "he initiated deceleration by braking"
is a kind of hurrying, speed, speeding
Antonym: acceleration