- acceleration - an increase in speed; "modern science caused an acceleration of cultural change"
--1 is a kind of speed, swiftness, fastness
Antonyms: deceleration, slowing, retardation
--1 has particulars: pickup, getaway; precipitationDerived form: verb accelerate2 - acceleration, quickening, speedup - the act of accelerating; increasing the speed
--2 is a kind of speed, speeding, hurrying
Derived form: verb accelerate2 - acceleration - (physics) a rate of change of velocity
--3 is a kind of rate
--3 has particulars: centripetal acceleration