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Hydr-   Listen
prefix
Hydr-, Hydro-  pref.  
1.
A combining form from Gr., meaning water (see Hydra).
2.
(Chem.) A combining form of hydrogen, indicating hydrogen as an ingredient, as hydrochloric; or a reduction product obtained by hydrogen, as hydroquinone.






Collaborative International Dictionary of English 0.48








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"Hydr-" Quotes from Famous Books



... investment of almost a hundred million dollars. The plant will have a capacity of 650,000 horse-power, which will be distributed throughout Canada and possibly the neighbouring States, and will be an important addition to the Ontario Hydro-Electric Power Transmission System which was inaugurated at Kitchener, ...
— Canada • J. G. Bourinot

... figure in the building. There it was the immense Corliss steam engine. Here it is a Diesel, started by President Wilson by wireless on the opening day, and generating all the direct current used in the palace. Another commanding exhibit is a 20,000 horsepower hydro-electric generator, significant of the modern use of water-power. The United States Government is the largest exhibitor in the building, with numerous fine models of warships, docks, dams and submarine mines; torpedoes, artillery, armorplate ...
— The Jewel City • Ben Macomber

... L. tigrinum be mounted in water and treated to weak solution of hydro-chloric acid we may easily discover that the crystals, which so wonderfully adorn the outer wall in this and other species, consist, in part at least, of calcium carbonate. We may also discover that in the case before us the crystal or scale lies indeed enclosed in a filmy sac of organic ...
— The North American Slime-Moulds • Thomas H. (Thomas Huston) MacBride

... with Burma; citing environmental, cultural, and social concerns, China is reconsidering construction of 13 dams on the Salween River but energy-starved Burma with backing from Thailand remains intent on building five hydro-electric dams downstream, despite identical regional and international protests; India seeks cooperation from Burma to keep Indian Nagaland separatists, such as the United Liberation Front of Assam, from hiding in remote Burmese Uplands; after 21 years, Bangladesh ...
— The 2008 CIA World Factbook • United States. Central Intelligence Agency.

... pure hydro-chloride of strychnine very little—only occasionally for pills. It is the official solution, Liq. Strychnine Hydro-clor. that is used in most medicines. That is why the finger-marks have remained undisturbed ...
— The Mysterious Affair at Styles • Agatha Christie

... enumerate the plants which furnish starch in large proportion, but a few may be given as illustrative of the above positions. The chemical analysis of those proximate principles of plants which are mere combinations of water with carbon (hydro-carbonates or hydrates of carbon) has been already given, ...
— The Church of England Magazine - Volume 10, No. 263, January 9, 1841 • Various

... number of large, heavy boxes lowered into the hold before we sailed. I know you did, because you asked me what they contained and commented upon the large letter 'H' which was painted upon each box. These boxes contain the various parts of a hydro-aeroplane. I purpose assembling this upon the strip of beach described in Bowen's manuscript—the beach where he found the dead body of the apelike man—provided there is sufficient space above high ...
— The People that Time Forgot • Edgar Rice Burroughs

... submarine torpedoed one of the food ships chartered by the commission. A week later a German hydro-airplane tried to drop bombs on the deck of another commission ship. So Hoover paid a flying visit to Berlin. He was at once assured that no more incidents of the sort ...
— History of the World War - An Authentic Narrative of the World's Greatest War • Francis A. March and Richard J. Beamish

... unconsumed carbon, and this is accompanied in its passage up our chimneys by sulphurous acid, begotten by the sulphur which is contained in the coal to the amount of about eight pounds in every thousand; by sulphuretted hydrogen, by hydro-carbons, and by vapours of various kinds of oils, small quantities of ammonia, and other bodies not by any means contributing to a healthy condition of the atmosphere. A good deal of the heavier carbon is deposited along the ...
— The Story of a Piece of Coal - What It Is, Whence It Comes, and Whither It Goes • Edward A. Martin

... killing eleven civilians; fifty German soldiers are killed at Ostend by a bomb dropped by allied aeroplane; Italian and Austrian aeroplane squadrons are active in the operations of the armies, doing much scouting and some bombarding; squadron of Italian hydro-aeroplanes throws bombs on the Trieste-Nabresina Railroad; allied aeroplane squadron flies over the Dardanelles and subjects Turkish ...
— New York Times Current History; The European War, Vol 2, No. 4, July, 1915 - April-September, 1915 • Various

... is to be hoped that Government will be allowed to give them all reasonable assistance without interference from home. Another purely Indian enterprise—also under the auspices of Messrs. Tata—is a great scheme for catching the rainfall of the Western Ghats and creating a hydro-electric supply of power which will, amongst other uses, drive most of ...
— Indian Unrest • Valentine Chirol

... religious fanatics, misfits, crackpots, malcontents to deal with. However, these are not important. Our industrial potential has finally begun to roll. We doubled steel production this year, will do the same next. Our hydro-electric installations tripled in the past two years. Coal production is four times higher, lumber production six times. We expect to increase grain harvest forty per ...
— Adaptation • Dallas McCord Reynolds

... cellulose, and so forth, which are almost identical in their ultimate composition, and admit of ready conversion into sugar by a simple process of vital chemistry. The oleaginous group comprises all oily matters, which are even purer hydro-carbons than the first-mentioned class. The third, or albuminous group, includes all substances closely allied to albumen, and hence containing a large proportion of nitrogen in addition to the other three elements. The last group consists also of nitrogenized substances, which resemble ...
— Atlantic Monthly, Volume 3, Issue 15, January, 1859 • Various

... not so wasted as they seem to have been. Not only Functions of a Quaternion, but other of these books, chatty books about hydro-mechanics and dynamics of a particle (no, not an article—that might have been helpful—a particle), gossipy books about optics and differential equations, many of these have a comforting air of cleanness; as if, having bought them at the ...
— If I May • A. A. Milne

... But even without them, sufficient would remain to secure for him a high and lasting scientific reputation. We should still have his researches on the Liquefaction of Gases; on Frictional Electricity; on the Electricity of the Gymnotus; on the source of Power in the Hydro-electric machine, the last two investigations being untouched in the foregoing memoir; on Electro-magnetic Rotations; on Regelation; all his more purely Chemical Researches, including his discovery of Benzol. Besides these ...
— Faraday As A Discoverer • John Tyndall

... Moreover hydro-therapy was supplemented by massage, which often had beneficial results in nervous affections; and fumigation of the patients, before they received advice from the oracle, lent an air of mystery. Those who were cured returned to express their gratitude and to offer presents to ...
— Primitive Psycho-Therapy and Quackery • Robert Means Lawrence

... having done what he considered his duty, Frank began to think it might be the part of wisdom for himself and his cousin to consider their own affairs, and make for the spot where their hydro-aeroplane lay ...
— The Aeroplane Boys Flight - A Hydroplane Roundup • John Luther Langworthy

... have only started. The land must be cleared of sage and greasewood, which in turn must be piled and burned. Then I must build several miles of concrete aqueduct, with laterals to carry the water for irrigation, and I must install a hydro-electric power- plant, purchase telegraph poles, string power lines, build roads, houses, barns and fences. I think I shall even have to build one hundred and fifty miles of railroad into Donnaville and equip ...
— The Long Chance • Peter B. Kyne

... union with those of other substances so as to form more complex compounds still, and their components often fail to hold together under ordinary conditions. A stage lower in degree of composition we come to the vast assemblage of oxy-hydro-carbons, numbers of which show many and decided affinities, and are stable at common temperatures. Passing to the inorganic group, we are shown by the salts &c. strong affinities between their components and unions which are, in many cases, not very easily broken. And ...
— Essays: Scientific, Political, & Speculative, Vol. I • Herbert Spencer

... as found in commerce, of a pale yellow-green colour; they emit a peculiar aromatic odour, and have a slightly astringent bitter taste. Buchu leaves contain a volatile oil, which is of a dark yellow colour, and deposits a form of camphor on exposure to air, a liquid hydro-carbon being the solvent of the camphor within the oil-glands. There is also present a minute quantity of a bitter principle. The leaves of a closely allied plant, Empleurum serratulum, are employed as a substitute or adulterant for buchu. As these possess no glands they are a worthless substitute. ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 - "Brescia" to "Bulgaria" • Various

... of virtual velocities, which belongs to the more complex science, dynamics; and that this "single principle" underlying all rational mechanics—this most general form which includes alike the relations of statical, hydro-statical, and dynamical forces—was reached so late as the ...
— Essays on Education and Kindred Subjects - Everyman's Library • Herbert Spencer

... from the car, and together the two went into the hangar, while I followed. They talked in low tones, but as nearly as I could make out Kennedy was hiring a hydro-aeroplane for to- morrow with as much nonchalance as if it had been ...
— The Treasure-Train • Arthur B. Reeve

... banded arrangement produced by the repeated re-opening and filling of the same fissure; but never, in quartz veins, a regular filling up from the sides towards the centre, as in veins produced by deposits from springs. Quartz veins extend sometimes for miles, and it is necessary to suppose on the hydro-thermal theory that the fissures remained open sufficiently long for the gradual deposition of the veinstones, without the soft and shattered rocks at their sides falling in, nor yet fragments from above; ...
— The Naturalist in Nicaragua • Thomas Belt

... compounds, (2) uric acid group, (3) indigo, (4) papers arising from indigo researches, (5) pyrrol and pyridine bases, (6) experiments on the elimination of water and on condensation, (7) the phthaleins, (8) the hydro-aromatic compounds, (9) the terpenes, (10) nitroso compounds, (11) furfurol, (12) acetylene compounds and "strain" (Spannungs) theory, (13) peroxides, (14) basic properties of oxygen, (15) dibenzalacetone and triphenylamine, (16) various researches on ...
— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 - "Baconthorpe" to "Bankruptcy" • Various

... in the resin, is the natural production of the plant from which the resin is derived. It may also be produced artificially. Abel found that when cumole (C{18}H{12}) was treated with nitric acid, so dilute that no red vapors were evolved for several days, this hydro-carbon was converted into benzoic acid. Guckelberger has, by the oxidation of casein with peroxide of manganese and sulphuric acid, obtained as one of the products benzoic acid. Albumen, fibrin, and gelatin yielded similar results when treated as above. Woehler has detected benzoic acid in Canadian ...
— The Art of Perfumery - And Methods of Obtaining the Odors of Plants • G. W. Septimus Piesse

... Hydra again! Monster huge, hydro-cephalous, Haunting our city of blunders and jobs, Born, it would seem, to bewilder and baffle us, Who'll give you "one" for your numerous nobs. Many have menaced you, some had a shy at you; SALISBURY stout, and bespectacled CROSS, Each in his season has joined in ...
— Punch, Or The London Charivari, Vol. 99., October 11, 1890 • Various

... Series.—The chemistry of the hydro-carbons depends on the valence of C, which, in most cases, is a tetrad. Take successively 1, 2, and 3 C atoms, saturate with H, and note ...
— An Introduction to Chemical Science • R.P. Williams

... engineer in charge of the hydro-electric plant of the Woodbridge Quarry Company, became interested in the "Scout Engineers," and through him the officials of the quarry company were persuaded to allow the lads to use as much electric current as they required without cost. The youngsters ...
— The Boy Scout Fire Fighters • Irving Crump

... John Savile Lumley, now Lord Savile of Rufford, the English ambassador at Rome, with the kind consent of the Italian government. It seems that this Artemisium Nemorense was not only a place of worship and devotion, but also a hydro-therapeutic establishment. The waters employed for the cure were those which spring from the lava rocks at Nemi, and which, until a few years ago, fell in graceful cascades into the lake, at a place called "Le Mole." They now supply the city of Albano, which has long suffered from ...
— Pagan and Christian Rome • Rodolfo Lanciani

... taxes—seven out of every ten use it in some form every day. It is unmistakably the most vital factor to-day in America's prosperity. Its resources are boundless. As Secretary of the Interior Lane expresses it, there is enough hydro-electric energy running to waste to equal the daily labor of 1,800,000,000 men or 30 ...
— How To Write Special Feature Articles • Willard Grosvenor Bleyer

... this the writer is not disposed to deny; but, on the other hand, it is plain that most of the phenomena are sufficiently accounted for on the supposition that the agents have been merely solutions of carbonic and hydro-sulphuric acids. These reagents will attack the bisilicates and felspars. The result would be carbonates and sulphides of metals, earth, alkalies, and free quartz, but quartz and sulphides of the metals are soluble in solutions of carbonates and sulphides ...
— Getting Gold • J. C. F. Johnson

... of life we have to consider two very different kinds of phenomena: the one embraced under the collective name—Inorganic chemistry—the other under the collective name—Organic chemistry, or the chemistry of hydro-carbons. These divisions are made because of the peculiar properties of the elements chiefly involved in the second class. The properties of matter are so distributed among the elements that three of them—Oxygen, Hydrogen, and Carbon—possess ...
— Manhood of Humanity. • Alfred Korzybski

... mushroom city of 20,000 sprang up on an Alabama cotton field in six months. The raw material, air, was as abundant there as anywhere and the power, water, could be obtained from the Government hydro-electric plant on the Tennessee River, but this was not available during the war, so steam was employed instead. The heat of the coal was used to cool the air down to the liquefying point. The principle ...
— Creative Chemistry - Descriptive of Recent Achievements in the Chemical Industries • Edwin E. Slosson

... of the spectroscope has enabled astronomers during later years to study the chemical composition of comets by analyzing their light. At first the only substances thus discovered in them were hydro-carbon compounds, due evidently to the gaseous envelopes in which some combination of hydrogen with carbon existed. Behind this gaseous spectrum was found a faint continuous spectrum ascribed to the nucleus, which apparently both reflects the sunlight and gives forth the light of a glowing ...
— Curiosities of the Sky • Garrett Serviss

... gave up his shop. On the contrary, he kept well abreast of new discoveries. He followed the great movement of chocolates; he was the first to introduce "cocoa" and "revalenta" into the Seine-Inferieure. He was enthusiastic about the hydro-electric Pulvermacher chains; he wore one himself, and when at night he took off his flannel vest, Madame Homais stood quite dazzled before the golden spiral beneath which he was hidden, and felt her ardour redouble for this man more bandaged than a Scythian, and splendid ...
— Madame Bovary • Gustave Flaubert

... their mouths. Amid the old women were a few little girls of thirteen or fourteen, monstrously deformed, with bleary eyes; one of them had her nose completely eaten away, with nothing but a hole like a wound left in its place; another was hydro-cephalous, with so thin a neck that it seemed the slightest movement would snap it and send her head rolling from ...
— The Quest • Pio Baroja

... of strychnine very little—only occasionally for pills. It is the official solution, Liq. Strychnine Hydro-clor. that is used in most medicines. That is why the finger-marks ...
— The Mysterious Affair at Styles • Agatha Christie

... muscle be employed by the bread-winner, a substantial breakfast is of first-rate importance. There is one form of food which it is especially necessary should constitute part of the meal, and which must be referred to. This is that variety known as the hydro-carbons or fats. The value of fat, in any of its many forms, in promoting the health of the body and preventing the onset of wasting diseases is hardly appreciated, and besides this action it markedly serves to nourish the brain and nervous system. Dr. Murchison, the late ...
— The Art of Living in Australia • Philip E. Muskett (?-1909)

... the connective tissue cells fat drops may be formed, as in Figure XV. Adipose tissue is simply connective tissue loaded with fat-distended cells. The tissue is, of course, a store form of hydro-carbon (Section 17) provided against the possible misadventure of starvation. With the exception of some hybernating animals, such store forms would seem to be of accidental importance only among animals, whereas among plants they are ...
— Text Book of Biology, Part 1: Vertebrata • H. G. Wells

... to within a grain, or a grain and a half. I next exhausted the baloon, by means of an air pump applied to the tube XXX, and then introduced oxygen gas by means of the tube yyy, having a stop cock adapted to it. This kind of experiment is most readily and most exactly performed by means of the hydro-pneumatic machine described by Mr Meusnier and me in the Memoirs of the Academy for 1782, pag. 466. and explained in the latter part of this work, with several important additions and corrections since made to it by Mr Meusnier. With this instrument we can readily ...
— Elements of Chemistry, - In a New Systematic Order, Containing all the Modern Discoveries • Antoine Lavoisier

... iodide of sulphur, and the chlorides of sulphur, phosphorus, and carbon, are not decomposable under common circumstances, though their elements are of a nature which would lead to a contrary expectation. Chloride of antimony (402. 690.), the hydro-carbons, acetic acid, ammonia, and many other bodies undecomposable by the voltaic pile, would seem to be formed by an affinity sufficiently strong to indicate that the elements were so far contrasted in their nature as to sanction the expectation that, ...
— Experimental Researches in Electricity, Volume 1 • Michael Faraday



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