Acceleration
WordNet
noun
(1) The act of accelerating; increasing the speed
(2) An increase in rate of change
"Modern science caused an acceleration of cultural change"
(3) (physics) a rate of increase of velocity
WiktionaryText
Etymology
- Latin acceleratio; compare French accélération
- accelerate + -tion
Noun
- (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
- a falling body moves toward the earth with an acceleration of velocity
- (countable) The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
- The boosters produce an acceleration of 20 metres per second per second.
- A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration — Isaac Taylor
- The change of velocity with respect to time (can include deceleration or changing direction).
Usage notes
Acceleration in SI units is measured in metres per second per second (m/s2), or in imperial units in feet per second per second (ft/s2).
Etymology
- Latin acceleratio; compare French accélération
- accelerate + -tion
Noun
- (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
- a falling body moves toward the earth with an acceleration of velocity
- (countable) The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
- The boosters produce an acceleration of 20 metres per second per second.
- A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration — Isaac Taylor
- The change of velocity with respect to time (can include deceleration or changing direction).
Usage notes
Acceleration in SI units is measured in metres per second per second (m/s2), or in imperial units in feet per second per second (ft/s2).
Antonyms
- : deceleration, retardation
Etymology
- Latin acceleratio; compare French accélération
- accelerate + -tion
Noun
- (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
- a falling body moves toward the earth with an acceleration of velocity
- (countable) The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
- The boosters produce an acceleration of 20 metres per second per second.
- A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration — Isaac Taylor
- The change of velocity with respect to time (can include deceleration or changing direction).
Usage notes
Acceleration in SI units is measured in metres per second per second (m/s2), or in imperial units in feet per second per second (ft/s2).
Antonyms
- : deceleration, retardation
