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Acceleration   /ˌæksˌɛlərˈeɪʃən/   Listen
noun
Acceleration  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. "A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration."
(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 of the tides 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.






Collaborative International Dictionary of English 0.48








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"Acceleration" Quotes from Famous Books



... grinding of glasses for that purpose, the weight of air, the possibility or impossibility of vacuities and nature's abhorrence thereof, the Torricellian experiment in quicksilver, the descent of heavy bodies and the degree of acceleration therein, with divers other things of like nature, some of which were then but new discoveries, and others not so generally known and embraced as now they are; with other things appertaining to what hath been called the New Philosophy, which, from the times of Galileo at Florence, and Sir ...
— Lay Sermons, Addresses and Reviews • Thomas Henry Huxley

... come singly. One afternoon this past August, Duncan completed repairs on Doc Potter's runabout. Cranking the machine to run it from the workshop, the "dog" on the safety-clutch failed to hold. The acceleration of the engine threw the machine into high. Dunk was pinned in front while the roadster leaped ahead and rammed the delivery truck of the ...
— O. Henry Memorial Award Prize Stories of 1920 • Various

... appreciably quickened; by either of which means nature would be enabled to make up the deficiency. It is true that it is difficult to count one's own respirations, but the average is considered in a healthy man to be eighteen in a minute; in my own case it is sixteen, an acceleration of which by three or four could not have been overlooked, in the repeated trials I made at Dorjiling, and still less the eight additional inhalations required at 15,000 feet to make up for the deficiency of oxygen in the ...
— Himalayan Journals (Complete) • J. D. Hooker

... man for all my predisposition to plumpness, would instantly scent the irony (while my companion, I fancy, might even plume himself), "and to beget your wisdom is chiefly why the world was made. You are so good as to propose an acceleration of that tedious multitudinous evolution upon which I am engaged. I gather, a universal tongue would serve you there. While I sit here among these mountains—I have been filing away at them for this last aeon ...
— A Modern Utopia • H. G. Wells

... keen mind considering every aspect of the motions possible, of velocity, of acceleration, of inertia. He already knew well Seaton's resourcefulness in crises and his physical ...
— Skylark Three • Edward Elmer Smith


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