what does the word accelerate
Wiktionary(0.00 / 0 votes)Rate this definition: acceleration(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. acceleration (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. acceleration (Noun)