Acceleration meaning

ăk-sĕlə-rāshən
The rate of change of the velocity of a moving body. An increase in the magnitude of the velocity of a moving body (an increase in speed) is called a positive acceleration; a decrease in speed is called a negative acceleration. Acceleration, like velocity, is a vector quantity, so any change in the direction of a moving body is also an acceleration. A moving body that follows a curved path, even when its speed remains constant, is undergoing acceleration.
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The definition of acceleration is a change in the rate of motion, speed or action.

An example of acceleration is increasing your driving speed from 45 to 55 to merge with traffic.

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(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.

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(countable) The amount by which a speed or velocity increases (so a scalar quantity or a vector quantity).

The boosters produce an acceleration of 20 metres per second per second.

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The hastening of a real property owner’s enjoyment, or the vesting, of his remainder interest in an estate because of the failure or premature termination of a preceding estate.
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The shortening of the time, or the immediate creation or vesting, of a legal duty, interest, or right that was to arise or vest in the future. See also acceleration clause.
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An accelerating or being accelerated.
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(physics) The change of velocity with respect to time (can include deceleration or changing direction).
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The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.
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The rate of change in the velocity of a moving body.
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The rate of change of velocity with respect to time.
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Origin of acceleration

  • First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate +‎ -ion.

    From Wiktionary