acceleration

About 7.12 uses per million words.

Meaning

1. noun 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.

2. noun 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.

3. noun The change of velocity with respect to time (can include deceleration or changing direction).
4. noun The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.

Similar words

speedup quickening momentum pickup throttling throttle streamlining gear pick-up increase

Often followed by

of is in and due at or a to

Word family

accelerations