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Indicator   /ˈɪndəkˌeɪtər/   Listen
Indicator

noun
1.
A number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time.  Synonyms: index, index number, indicant.
2.
A signal for attracting attention.
3.
A device for showing the operating condition of some system.
4.
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction.



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"Indicator" Quotes from Famous Books



... of 1,300 pounds was sanctioned by the Local Government Board for defraying the cost of the extension of the Reference Library and fittings, the purchase of a Cotgreave Indicator, installed in 1897, the restoration of the exterior stonework of the building, and interior decoration and repairs. The total expenditure amounted to 1,740 pounds, the difference between the cost and the amount of the loan ...
— Three Centuries of a City Library • George A. Stephen

... the two sides of the water to the inevitable result of opening it to home-circulation—the necessity of knowing whether a given book is or is not on the shelves. The American response was to open the shelves, the British, to create an additional piece of machinery—the indicator. These two results might have been predicted in advance by one familiar with the temper of the two peoples. It has shown itself in scores of instances, in the front yards of residences, for instance—walled off in England and open to the ...
— A Librarian's Open Shelf • Arthur E. Bostwick

... the white locks of Thorwaldsen was such an one,—the eye of immortal youth, the indicator of the man's whole aspect in a future sphere. We have scanned such eyes closely; when near, we saw that the lids were red, the corners defaced with ominous marks, the orb looked faded and tear-stained; but when we retreated ...
— Woman in the Ninteenth Century - and Kindred Papers Relating to the Sphere, Condition - and Duties, of Woman. • Margaret Fuller Ossoli

... Passero has several messengers who travel to and fro in secret. Mademoiselle Lisette was once one of them. She has travelled many times the length and breadth of Europe. But nowadays she is an indicator—and a very clever one indeed," he added ...
— Mademoiselle of Monte Carlo • William Le Queux

... illuminated shops on either side. On his right stood a weighing machine and an automatic figure. Without a moment's hesitation he jumped on the little platform of the weighing machine and slipped a penny in the slot. As he was quite sure that he weighed eleven stone, he could not help smiling when the indicator registered only one. Either the machine has gone wrong, he thought, or I have been transported to some other planet, ten times larger, or ten times smaller than the earth; he had been a pupil at the School of Navigation, you see, and knew ...
— In Midsummer Days and Other Tales • August Strindberg

... the safe and twirled the knob and watched the indicator find the four numbers which were the "open sesame" to the ...
— Tom Swift and his Electric Locomotive - or, Two Miles a Minute on the Rails • Victor Appleton

... index or indicator of an instrument.—Station pointer. A brass graduated circle with one fixed and two radial legs; by placing them at two adjoining angles taken by a sextant between three known objects, the position of the observer is ...
— The Sailor's Word-Book • William Henry Smyth

... regulated by an ordinary Porter governor actuating the throttle valve, O. An engine, as described, has been constructed by Messrs. Adair & Co., engineers, Waterloo Road, Liverpool, and has been running most satisfactorily for several weeks, the results being clearly shown by the indicator diagrams (Figs. 5 and 6). The results obtained by this motor are very remarkable, and are a long way in advance of any previous performance, as only a little over 1/2 lb. of fuel is used per i.h.p. per hour. It may ...
— Scientific American Supplement, No. 633, February 18, 1888 • Various

... flour and we're eating a basketful of griddle cakes every morning for breakfast. Terrible to be a coward; we always turn on the hot water first in the shower bath, except the first morning we used it. The plumber got the indicator on the wrong way round, and when you turn to the place marked HOT it comes down like ice. Our idea of a really happy man is the fellow driving a wagonload of truck just in front of a trolley car, holding it back all the way downtown; when he hears ...
— Pipefuls • Christopher Morley

... invented the "Counter," with its several indexes. Among his leading improvements, introduced at various periods, were the throttle-valve, the application of the governor, the barometer or float, the steam-gauge, and the indicator. The term during which he seems to have thus combined the greatest maturity with the greatest activity of intellect, and the portion of his life which they comprehended, was from his fortieth to his fiftieth year. Yet it was a term of increased suffering from his acute sick-headaches, ...
— Great Men and Famous Women. Vol. 6 of 8 • Various

... point; the acceleration rate decreased, and the gravity indicator dropped, little by little. Everybody was enjoying the new sense of lightness, romping and skylarking like newly landed tourists on Luna. It was fun, as long as they landed on their feet at each jump, and the food and liquids stayed on plates and in glasses ...
— The Cosmic Computer • Henry Beam Piper

... admit a small quantity of steam into the back end of the cylinder, oil from the lubricator will go through this opening and oil the piston rod and cylinder packing. If not possible to block the valve properly, cover the ports and oil the cylinder through the indicator plug openings or relief plug holes. If not possible to do this, slack off the bolts on the front cylinder head, wedge the head open so oil can be introduced. In some cases it may be necessary to take the head off; that however, allows dust and ...
— The Traveling Engineers' Association - To Improve The Locomotive Engine Service of American Railroads • Anonymous

... will the Weather be To-morrow?—Pool's Signal Service Barometer and Thermometer combined. Fortells correctly any change in the weather, 12 to 24 hours in advance. Endorsed by the most eminent Professors and Scientific men as the best Weather indicator in the World. Warranted ...
— The Nursery, January 1877, Volume XXI, No. 1 - A Monthly Magazine for Youngest Readers • Various

... figure, buttoned from heel to chin in a greatcoat, who stood there gripping the rail of the bridge with one hand, and from time to time giving an order to his sailing-master, who stood in the centre of the bridge before the compass and electric indicator. ...
— A Man's Woman • Frank Norris

... dilute juice fasting should be attempted. Most fasters are incapable of persisting until the body reserves have been used up because social conditioning is telling them their emaciated-looking body must be dying when it is actually far from death, but return of true hunger is the critical indicator that must not be ignored. True hunger is not what most people think of when they think they are hungry. Few Americans have ever experienced true hunger. It is not a rumbling in the stomach or a set of uncomfortable ...
— How and When to Be Your Own Doctor • Dr. Isabelle A. Moser with Steve Solomon



Words linked to "Indicator" :   BMI, device, stock market index, dial, sign, fuel gauge, spirit level, signal, chemical science, color, test paper, scale, point of reference, signaling, Molisch's test, short account, pilot light, stock index, pointer, price index, indicate, gnomon, colour, fact, coloring material, reference point, cursor, business index, Molisch reaction, reference, alpha-naphthol test, colouring material, body mass index, tidemark, Molisch test, pilot lamp, price level, chemistry, level, annunciator



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