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English to English noun
| 1 |
an increase in rate of change |  | Example: modern science caused an acceleration of cultural change
source: wordnet30
| 2 |
the act of accelerating; increasing the speed | | source: wordnet30
| 3 |
(physics) a rate of increase of velocity | | source: wordnet30
| 4 |
The act of accelerating, or the state of being accelerated; increase of motion or action; as, a falling body moves toward the earth with an acceleration of velocity; -- opposed to retardation. | | source: webster1913
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