acceleration : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: acceleration	by the DICT Development Group
2 results for acceleration
From WordNet (r) 3.0 (2006) [wn]:
acceleration n an increase in rate of change; "modern science caused an acceleration of cultural change" Antonym(s): deceleration, retardation, slowing the act of accelerating; increasing the speed Synonym(s): acceleration, quickening, speedup Antonym(s): deceleration (physics) a rate of increase of velocity Antonym(s): deceleration
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Acceleration \Accel`era"tion\, n. [L. acceleratio: cf. F. acc[82]l[82]ration.] 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.