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Retardation   Listen
noun
Retardation  n.  
1.
The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; opposed to acceleration. "The retardations of our fluent motion."
2.
That which retards; an obstacle; an obstruction. "Hills, sloughs, and other terrestrial retardations."
3.
(Mus.) The keeping back of an approaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; differing from suspension by resolving upwards instead of downwards.
4.
The extent to which anything is retarded; the amount of retarding or delay.
Retardation of the tide.
(a)
The lunitidal interval, or the hour angle of the moon at the time of high tide any port; the interval between the transit of the moon and the time of high tide next following.
(b)
The age of the tide; the retard of the tide. See under Retard, n.






Collaborative International Dictionary of English 0.48








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"Retardation" Quotes from Famous Books



... through inactivity and quickly pass toward atrophy and extinction. Conversely in demotic development, which is characterized by the persistence of the organisms and by the elimination of the bad and the preservation of the good among qualities only, there is a constant tendency toward retardation of progress; for in savagery and barbarism as in civilization, age commonly produces conservatism, and at the same time brings responsibility for the conduct of old and young, so that modification, howsoever beneficial, is measurably held in check, and ...
— The Siouan Indians • W. J. McGee

... had been followed by immediate catastrophe? While the foot of Christ is fleet as that of a roebuck when He comes to save, it does seem as if he were hoppled with great languors and infinite lethargies when He comes to punish. Oh, I celebrate God's slowness, God's retardation, God's putting off the retribution! Do you not think, my brother, it would be a great deal better for us to exchange our impatient hypercriticism of Providence because this man, by watering of stock, makes a million dollars in one day, and ...
— New Tabernacle Sermons • Thomas De Witt Talmage

... part, for a short time with a tendency to catalepsy and some resistiveness, and at that time lying with eyes partly closed. As a rule she said nothing spontaneously, but replied to some questions, usually with marked retardation, again more promptly. She constantly denied feeling sad or worried, repeatedly said she felt "better," only on one occasion did she cry a little. When asked to calculate she sometimes did it very slowly, again fairly promptly. The simple calculations ...
— Benign Stupors - A Study of a New Manic-Depressive Reaction Type • August Hoch

... degree upon the engine employed, and in a less degree upon the hauling depth. The reason why depth is a subsidiary factor is that the rapidity with which a load can be drawn is not wholly a factor of depth. The time consumed in hoisting is partially expended in loading, in acceleration and retardation of the engine, and in discharge of the load. These factors are constant for any depth, and extra distance is therefore accomplished at ...
— Principles of Mining - Valuation, Organization and Administration • Herbert C. Hoover

... required for the Atlantic, the signals might not be so sluggish that the work would hardly pay. Faraday had said to Mr. Field that a signal would take 'about a second,' and the American was satisfied; but Professor Thomson enunciated the law of retardation, and cleared up the whole matter. He showed that the velocity of a signal through a given core was inversely proportional to the square of the length of the core. That is to say, in any particular cable the speed of a signal is diminished to one-fourth ...
— Heroes of the Telegraph • J. Munro

... anxious for it. The Admiralty made the excellent choice of Mr Hind.—In October Faraday and I, at Lothbury, witnessed some remarkable experiments by Mr Latimer Clark on a galvanic current carried four times to and from Manchester by subterranean wires (more than 2000 miles) shewing the retardation of visible currents (at their maximum effect) and the concentration of active power. I made investigations of the velocity of the Galvanic Current.—I was engaged on the preliminary enquiries and arrangements for the Deal Time ...
— Autobiography of Sir George Biddell Airy • George Biddell Airy

... and good, and, as force, comes from God—the negative or evil element in it comes from the agent himself; just as in the case of two ships of the same size, but unequally laden, which drift with the current, the speed comes from the stream and the retardation from the load of the vessels themselves. God is not responsible for sin, for he has only permitted it, not willed it directly, and man was already evil before he was created. The fact that God foresaw that man would sin does not constrain the latter ...
— History Of Modern Philosophy - From Nicolas of Cusa to the Present Time • Richard Falckenberg

... right down to the rock and took out every gauge on the way. Then it piled up in the valley and knocked out all but three gauges there. And they're reading anywhere from sixty-five to more than one hundred foot depths. We'll lose some of that if it's not lying right for retardation spraying." ...
— The Thirst Quenchers • Rick Raphael

... remarkable number of the results of recent research on the structure and form of the universe, and the changes taking place in it. The most curious illustration of the way in which he arrived at a correct conclusion by defective reasoning is found in his anticipation of the modern theory of a constant retardation of the velocity with which the earth revolves on its axis. He conceived that this effect must result from the force exerted by the tidal wave, as moving towards the west it strikes the eastern coasts of Asia ...
— Side-lights on Astronomy and Kindred Fields of Popular Science • Simon Newcomb

... or lack of activity, has led to a lasting or at least relatively lasting disturbance in the system of paths. The neglect of training, for instance, in periods of development may have resulted in the retardation which yields the symptoms of a feeble-minded brain, or the wrong training may have created vicious habits, firmly established in the mind-brain system and gravely disturbing the equilibrium. Above all, the overstrain of function, especially of emotional functions, may lead to that exhaustion ...
— Psychotherapy • Hugo Muensterberg

... immediate, renders the problem insoluble. How can the eggs, which should grow slowly for eleven months, suddenly acquire their full expansion in forty-eight hours, when fecundation has been retarded twenty-one days, and by the effect of this retardation alone? Observe, I beseech you, that the hypothesis of successive expansion is not gratuitous; it rests on the principles of sound philosophy. Besides, for conviction that it is well founded, we have only to look at the figures given by Swammerdam of ...
— New observations on the natural history of bees • Francis Huber

... valuable as was the spirit instilled into the hearts of His followers by the tenderness of the Master, it was never sufficient to counterbalance the deterrent effects of the religion which they espoused. The retardation was caused by two related beliefs which permeated the church: The first was the doctrine of the power of demons in the lives of men, especially in the production of disease; and the second was the prevalence of the idea of the possibility and probability of the performance ...
— Three Thousand Years of Mental Healing • George Barton Cutten

... air in question; for, although in proceeding from the tropics towards the equator, the wind might, at first sight, be supposed to have its speed somewhat lessened by friction along the earth's surface, the retardation due to this cause, if there be any at all, must be inconsiderable, compared to that which affects the motion caused by the difference in the rotatory velocity of the earth at the different parallels. It must be recollected, ...
— The Lieutenant and Commander - Being Autobigraphical Sketches of His Own Career, from - Fragments of Voyages and Travels • Basil Hall

... i.e. the retardation of a reaction by addition of some substance, which is occasionally observed, appears to depend upon the destruction of a "positive catalyte" by ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various

... it stood by itself equally well be taken as an 8-stress or as a 5-stress line; and obviously in a blank verse context it produces a very marked retardation of the tempo. No one would dream of reading it in the same space of time as the rapid line which just precedes it and to which it ...
— The Principles of English Versification • Paull Franklin Baum

... to say, in spite of the lethargy which necessitated at least some artificial feeding, she was not falling away. She seemed, if anything, plump. To all appearances there was really a retardation of metabolism connected with the trance-like sleep. She was actually gaining ...
— The Treasure-Train • Arthur B. Reeve

... his Cometography these Disquisitions: whether all Comets (in their innate Motion) move equal spaces in equal Times? which is the swiftest, and which the slowest Motion they are capable of? what the cause of this acceleration and retardation of ...
— Philosophical Transactions of the Royal Society - Vol 1 - 1666 • Various

... were, whet the appetite of the audience for what is to come. We see in the Porter scene in Macbeth a suspension of this nature; but Shakespeare used it sparingly, unless, indeed, we are to consider as a deliberate point of art the retardation of movement commonly observable in the fourth acts of his tragedies. Ibsen, on the other hand, deliberately employed this device on three conspicuous occasions. The entrance of Dr. Rank in the last act of A Doll's House ...
— Play-Making - A Manual of Craftsmanship • William Archer

... into ellipses by the backward pull of a planet, whose sphere of attraction they chanced to enter when approaching the sun from outer space. Moreover, since a body thus affected should necessarily return at each revolution to the scene of encounter, the same process of retardation may, in some cases, have been repeated many times, until the more restricted cometary orbits were reduced to their present dimensions. The prevalence, too, among periodical comets, of direct motion, is shown to be inevitable by M. Callandreau's ...
— A Popular History of Astronomy During the Nineteenth Century - Fourth Edition • Agnes M. (Agnes Mary) Clerke

... part of its orbit most distant from Jupiter. Roemer reasoned thus: 'Had I been able to remain at the other side of the earth's orbit, the moon might have appeared always at the proper instant; an observer placed there would probably have seen the moon 15 minutes ago, the retardation in my case being due to the fact that the light requires 15 minutes to travel from the place where my first observation was made ...
— Six Lectures on Light - Delivered In The United States In 1872-1873 • John Tyndall

... second is not a very swift astronomical motion, for comets have been known to have a velocity of 400 miles a second when in the neighbourhood of the sun, and yet they have not seemed to suffer any retardation, for their orbits have not been shortened. Some years ago a comet was noticed to have its periodic time shortened an hour or two, and the explanation offered at first was that the shortening was due to friction in the ether although ...
— The Machinery of the Universe - Mechanical Conceptions of Physical Phenomena • Amos Emerson Dolbear

... stage of this disorder is commonly shown by retardation of thought and motion, the excited stage by pressure of activity and acceleration of thought. In the so-called "flight of ideas" words succeed each other with incredible rapidity, without goal idea, but each word suggesting the next by sound ...
— Why Worry? • George Lincoln Walton, M.D.

... intense and clear consciousness, to comparative inactivity or faint and obscure consciousness. The cause of this condition of the centres is supposed to be the same as that of the torpidity of all the other organs in sleep, namely, the retardation of the circulation. But, though there is no doubt as to this, the question of the proximate physiological conditions of sleep is still far from being settled. Whether during sleep the blood-vessels of the brain are fuller or less full than during waking, is ...
— Illusions - A Psychological Study • James Sully

... in what special directions this alleged helplessness, entailed by much state superintendence, shows itself, we reply that it is seen in a retardation of all social growths requiring self-confidence in the people—in a timidity that fears all difficulties not before encountered—in a thoughtless contentment with things as they are. Let any one, after duly watching the rapid ...
— The Best of the World's Classics, Restricted to Prose, Vol. VI (of X)—Great Britain and Ireland IV • Various

... announcement was made, almost simultaneously from three observatories, that the motion of the planet Neptune, the outermost of all the planets that wheel about the sun, had become very erratic. Ogilvy had already called attention to a suspected retardation in its velocity in December. Such a piece of news was scarcely calculated to interest a world the greater portion of whose inhabitants were unaware of the existence of the planet Neptune, nor outside the astronomical profession did the subsequent discovery of a faint remote speck of light ...
— Tales of Space and Time • Herbert George Wells

... application of the theory of universal gravitation. The irregularities exhibited in the lunar motions had been known in the time of Hipparchus and Ptolemy. Tycho had discovered the great inequality, called the "variation," amounting to 37', and depending on the alternate acceleration and retardation of the moon in every quarter of a revolution, and he had also ascertained the existence of the annual equation. Of these two inequalities Newton ...
— The Great Events by Famous Historians, Volume 12 • Editor-In-Chief Rossiter Johnson



Words linked to "Retardation" :   retardant, abnormality, stupidity, lag, slowness, retard, mental deficiency, acceleration, modification, amentia, backwardness, idiocy, retardent, agent, alteration, subnormality, slowdown, hold, holdup, mental retardation, delay, change, time lag, slowing, postponement



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