acceleration

1. n. 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: opted

2. n. an increase in rate of change Source: wordnet

3. n. the act of accelerating; increasing the speed Source: wordnet

4. n. (physics) a rate of increase of velocity Source: wordnet

5. 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. A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration. I. Taylor. (Astr. & Physics.) Acceleration of the moon, the increase of the moon's mean motion in its orbit, in consequence of which its period of revolution is now shorter than in ancient times. -- Acceleration and retardation of the tides. See Priming of the tides, under Priming. -- Diurnal acceleration of the fixed stars, the amount by which their apparent diurnal motion exceeds that of the sun, in consequence of which they daily come to the meridian of any place about three minutes fifty-six seconds of solar time earlier than on the day preceding. -- Acceleration of the planets, the increasing velocity of their motion, in proceeding from the apogee to the perigee of their orbits. Source: webster

6. The act of accelerating, or the state of being accelerated;increase of motion or action; as, a falling body moves toward theearth with an acceleration of velocity; -- opposed to retardation.A period of social improvement, or of intellectual advancement,contains within itself a principle of acceleration. I. Taylor.(Astr. & Physics.) Acceleration of the moon, the increase of themoon's mean motion in its orbit, in consequence of which its periodof revolution is now shorter than in ancient times.-- Acceleration and retardation of the tides. See Priming of thetides, under Priming.-- Diurnal acceleration of the fixed stars, the amount by whichtheir apparent diurnal motion exceeds that of the sun, in consequenceof which they daily come to the meridian of any place about threeminutes fifty-six seconds of solar time earlier than on the daypreceding.-- Acceleration of the planets, the increasing velocity of theirmotion, in proceeding from the apogee to the perigee of their orbits. Source: adambom

7. n:100 n. an increase in rate of change n. the act of accelerating; increasing the speed n. (physics) a rate of increase of velocity Source: ecdict

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