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Thermal   Listen
adjective
Thermal  adj.  
1.
Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters. "The thermal condition of the earth."
2.
Caused by or affected by heat; as, thermal springs.
3.
Designed to retain heat; as, thermal underwear.
Thermal conductivity, Thermal spectrum. See under Conductivity, and Spectrum.
Thermal unit (Physics), a unit chosen for the comparison or calculation of quantities of heat. The unit most commonly employed is the amount of heat necessary to raise the temperature of one gram or one pound of water from zero to one degree Centigrade. See Calorie, and under Unit.






Collaborative International Dictionary of English 0.48








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"Thermal" Quotes from Famous Books



... four-stroke cycle engines possess exactly the same thermal efficiency, but actually this is modified by a series of practical conditions which to some extent tend to neutralise the very strong case in favour of the two-stroke cycle engine. The specific capacity of the engine operating on the two-stroke principle is theoretically ...
— A History of Aeronautics • E. Charles Vivian

... heat radiation from the bomb is so short, just a few thousandths of a second, that there is no time for the energy falling on a surface to be dissipated by thermal defusion; the flash burn is typically a surface effect. In other words the surface of either a person or an object exposed to the flash is raised to a very high temperature while immediately beneath the surface very little ...
— The Atomic Bombings of Hiroshima and Nagasaki • United States

... the powerful action exerted upon the human system by the Buxton Medicinal Thermal Water, and the unsatisfactory results arising from its indiscriminate and incautious use, either in the form of baths or by taking it internally, I have in the following pages, as briefly and succinctly as possible, endeavoured to make some practical suggestions for the guidance of those of my professional ...
— Buxton and its Medicinal Waters • Robert Ottiwell Gifford-Bennet

... criteria established for Project TRINITY were based on calculations of the anticipated dangers from blast pressure, thermal radiation, and ionizing radiation. The TR-7 Group, also known as the Medical Group, was responsible for radiological safety. A limit of 5 roentgens of exposure during a two-month period ...
— Project Trinity 1945-1946 • Carl Maag and Steve Rohrer

... certain number of minutes the melted water was measured, then a simple computation led to a knowledge of how much heat was absorbed from the air per minute by a square foot of the surface of the ice. From this it was easy to calculate from the known thermal capacity of air, and the quantity of the latter necessary per minute, how many feet of cooling surface must be exposed. I was quite surprised at the result. A case of ice nearly as long as an ordinary room, and ...
— The Reminiscences of an Astronomer • Simon Newcomb

... popular health resort in N. Bohemia, finely situated in a valley between the Erzgebirge and Mittelgebirge, 20 m. NW. of Leitmeritz; its thermal springs are celebrated for the cure ...
— The Nuttall Encyclopaedia - Being a Concise and Comprehensive Dictionary of General Knowledge • Edited by Rev. James Wood

... the vast continent of South America. It was the culminating point of the highlands of Guiana. For ages this granite peak was the solo representative of dry land in our hemisphere south of the Canada hills. In process of time, a cluster of islands rose above the thermal waters. They were the small beginnings of the future mountains of Brazil, holding in their laps the diamonds which now sparkle in the crown of Dom Pedro II. Long protracted eons elapsed without adding a page to the geology of South America. The Creator seems to have been ...
— The Andes and the Amazon - Across the Continent of South America • James Orton

... was a purely accidental circumstance. The proper elements just happened to come together at the right time in the right proportions and under the right conditions, and life was the result. It was an accident in the thermal history of the globe. Professor Loeb has lately published a volume of essays and addresses called "The Mechanistic Conception of Life," enforcing and illustrating this view. He makes war on what he terms the metaphysical ...
— The Breath of Life • John Burroughs

... and brown, and the action of the water in its rapid passage down the sides of the canon has worn the fragments of shale into countless capricious forms. Jets of steam issue from the sides of the canon at frequent intervals, marking the presence of thermal springs and active volcanic forces. The evidence of a recession of the river through the canon is designated by the ridges apparent on its sides, and it is not improbable that at no distant day the lower fall will become blended by this process with ...
— The Discovery of Yellowstone Park • Nathaniel Pitt Langford

... in the island of Pantellaria, situated halfway between Sicily and Africa. It was a very high, volcanic cone that came up in the midst of the strait and had at its base alkaline lakes, sulphurous fumes, thermal waters, and prehistoric constructions of great stone blocks similar to those in Sardinia and the Balearic Islands. Boats bound for Tunis and Tripoli used to carry cargoes of raisins, the only export from this ...
— Mare Nostrum (Our Sea) - A Novel • Vicente Blasco Ibanez

... averages about 2100 degrees Fahrenheit; it is lowest at the rear, where the batch is fed in, and graduates to its highest point just behind the openings thru which the glass is drawn off. This temperature is measured by special instruments called thermal couples—two metals joined and placed in the heat of the flame. The heat sets up an electric current in the joined metals, and this current is read on a galvanometer graduated to read degrees Fahrenheit instead of volts, so that the ...
— How To Write Special Feature Articles • Willard Grosvenor Bleyer

... language, but manners and customs. Roman gods took the place of so-called Druidic rites. Roman roads spread like a net-work throughout the country, sumptuous edifices were erected at Vesontio (Besancon), and Epomanduodarum (Maudeure, Doubs). The thermal and ferruginous springs of Luxovium (Luxueil), and Salinae (Salins), attracted the Roman world of fashion. Wines of the Jura found their way to luxurious tables of Rome and Athens. The brave Sabinus made an attempt to shake off the Roman yoke, and his virtuous and heroic wife, ...
— Holidays in Eastern France • Matilda Betham-Edwards

... when the carbon present has combined with the greatest possible amount of oxygen that it will take into partnership is the combustion complete and the full heat-value (fixed by scientific experiment at 14,500 thermal units ...
— How it Works • Archibald Williams

... highest temperatures that are possible. During the first heating cycle, peak temperatures were about 140 degree. After two weeks, when the first turn was made, temperatures had dropped to about 125 degree, and gradually declined from there. Howard cleverly restricted the air supply and thermal mass so as to "bank the fires" of decomposition. This moderation was his key to preventing loss of nitrogen. Provisions were made to water the heaps as necessary, to turn them several times, and to use a novel system of mass inoculation with the proper fungi and bacteria. ...
— Organic Gardener's Composting • Steve Solomon

... was but a group of poor cabins, there arrived one day a strange old Spaniard with marvellous eyes, who scarcely spoke the Tagal. He wished to buy lands having thermal springs, and did so, paying in money, dress, and jewelry. Suddenly he disappeared, leaving no trace. The people of the pueblo had begun to think of him as a magician, when one day his body was found hanging high to the branch of a giant fig tree. After it had been buried ...
— An Eagle Flight - A Filipino Novel Adapted from Noli Me Tangere • Jose Rizal

... suasiones, fraudes et veneficia includebantur. "Whence that heat to waters bubbling from the cold moist earth? Cupid, once upon a time, playfully dipped herein his arrows of steel, and delighted with the hissing sound, he said, boil on for ever, and retain the memory of my quiver. From that time it is a thermal spring, in which few venture to bathe, but whosoever does, his heart is instantly ...
— The Anatomy of Melancholy • Democritus Junior

... is sea level, subterranean water circulates much below that depth, and is brought again to the surface by hydrostatic pressure. In many instances springs have a higher temperature than the average annual temperature of the region, and are then known as thermal springs. In regions of present or recent volcanic activity, such as the Yellowstone National Park, we may believe that the heat of thermal springs is derived from uncooled lavas, perhaps not far below the surface. But when hot springs occur at a distance ...
— The Elements of Geology • William Harmon Norton

... till evening, as its appearance was very inviting. Its FAUNA and FLORA, however, were poor in the extreme. The only specimens of quadrupeds, birds, fish and cetacea were a few wild boars, stormy petrels, albatrosses, perch and seals. Here and there thermal springs and chalybeate waters escaped from the black lava, and thin dark vapors rose above the volcanic soil. Some of these springs were very hot. John Mangles held his thermometer in one of them, and found the temperature was 176 degrees Fahrenheit. Fish caught in the sea a ...
— In Search of the Castaways • Jules Verne

... down its whole length near the centre, with extensive outlying spurs, and alluvial plains on both sides densely covered with jungle, as are also the mountains. There are no traces of volcanic formation, though thermal springs exist in Malacca. The rivers are numerous, but with one exception small, and are seldom navigable beyond the reach of the tides, except by flat-bottomed boats. It is believed that there ...
— The Golden Chersonese and the Way Thither • Isabella L. Bird (Mrs. Bishop)

... singing in the ears, constriction of the epigastrium, the jerks, the trembling, vertigo, or nausea—all this collection of organic troubles which comes more or less confusedly to our consciousness under the form of tactile, muscular, thermal, and other sensations. Until now this category of phenomena has been somewhat neglected, because we saw in it effects and consequences of which the role in emotion itself seemed slight, since, if they could ...
— The Mind and the Brain - Being the Authorised Translation of L'me et le Corps • Alfred Binet

... fountains that poets sing,— Crystal, thermal, or mineral spring; Ponce de Leon's Fount of Youth; Wells with bottoms of doubtful truth; In short, of all the springs of Time That ever were flowing in fact or rhyme, That ever were tasted, felt, or seen,— There were none like ...
— East and West - Poems • Bret Harte

... thermal death point of most bacteria ranges from 130 deg.-140 deg. F. where the exposure is made for ten minutes which is the standard arbitrarily selected. In the spore stage resistance is greatly increased, some forms being able ...
— Outlines of Dairy Bacteriology, 8th edition - A Concise Manual for the Use of Students in Dairying • H. L. Russell

... summer, the prevalence of the northerly winds, the chilling effects of which are not always neutralised by the antagonistic winds, rapid and violent transitions, profoundly affecting the system, even in healthy persons; and combined with these violent atmospheric and thermal variations are also, in similar proportions, hygrometric and electric ever-changing influences.' Leghorn, the seaport of Tuscany, is built in a sunk locality, in the midst of a marshy country. Beggars, galley-slaves, assassins, smugglers, these are the picturesque portions ...
— Chambers's Edinburgh Journal, No. 444 - Volume 18, New Series, July 3, 1852 • Various

... can easily conceive the ether as the same space-filling, continuous, unlimited medium, without an atom in it. On this assumption it is clear that no form of energy with which we have to deal in physical science would have any existence in the ether; for every one of those forms, gravitational, thermal, electric, magnetic, or any other—all are the results of the forms of energy in matter. If there were no atoms, there would be no gravitation, for that is the attraction of atoms upon each other. If there were no atoms, ...
— The Machinery of the Universe - Mechanical Conceptions of Physical Phenomena • Amos Emerson Dolbear

... have been devised by Serrin, Dubosq, Siemens, Brockie, and others, some regulating the arc by clockwork and electro-magnetism, or by thermal and other effects of the current. They are chiefly used for lighting halls and railway stations, streets and open spaces, search-lights and lighthouses. They are sometimes naked, but as a rule their brightness ...
— The Story Of Electricity • John Munro

... course of his travels, he arrived at Ikao,—a mountain-village still famed for its thermal springs, and for the beautiful scenery of its neighborhood. In the village-inn at which he stopped, a young girl came to wait upon him; and, at the first sight of her face, he felt his heart leap as it had never leaped ...
— Kwaidan: Stories and Studies of Strange Things • Lafcadio Hearn

... out of the north entrance o' the bay, Angel, instead of the south, as we thought. I was fooled by the soundings. At this time o' the year Barbados is about on the thermal equator—half-way between the trades. This is a West India cyclone, and we're somewhere around Hatteras. No wonder the port tack drifted us into the center. Storms revolve against the sun north o' the line, and with the sun south of it. Oh, I'm the two ends and the bight of ...
— "Where Angels Fear to Tread" and Other Stories of the Sea • Morgan Robertson

... in front of the famous baths of Tiflis, the thermal waters of which attain a temperature of 60 degrees centigrade. There you will find in use the highest development of massage, the suppling of the spine, the cracking of the joints. I remember what was said by our great Dumas whose peregrinations were never devoid of incidents; he invented ...
— The Adventures of a Special Correspondent • Jules Verne

... constructed across a stream in such a manner as to enable the maintenance of a water level not too high for the growth of plants; when a freeze is threatened the plants can be flooded. In the cress beds selected for the experiments the water is obtained from a thermal spring whose temperature throughout the year is about 70 deg. F. This temperature is particularly favorable to the growth of "frog spawn." After the cress was cut for market, the algae frequently developed so rapidly as to smother the life out of the weakened ...
— The Home Medical Library, Volume V (of VI) • Various

... whatever the irritant may be. The extent to which the process may go, however, and its effects on the part implicated and on the system as a whole, vary with different irritants and with the intensity and duration of their action. A mechanical, a thermal, or a chemical irritant, acting alone, induces a degree of reaction directly proportionate to its physical properties, and so long as it does not completely destroy the vitality of the part involved, the changes in the tissues are chiefly directed towards ...
— Manual of Surgery - Volume First: General Surgery. Sixth Edition. • Alexis Thomson and Alexander Miles

... indestructible as matter. But matter, though one, has many different aspects, and the same is true of energy. Till recently only four forms of energy, convertible into one another, have been known to us: energies known as the dynamic, the thermal, the electric, and the chemic. But these four aspects of energy are far from exhausting all the varieties of its manifestation. The forms in which energy may manifest itself are very diverse, and it is one of these new and as yet but little known phases of energy, that we are investigating ...
— Redemption and Two Other Plays • Leo Tolstoy et al

... by the most efficient of centralheating systems or to use one of the perfectly appointed bathrooms whose every fixture was the best money could buy and recall the dank stone floors and walls leading up to a mammoth and—from a thermal point of view—perfectly useless fireplace flanked by the coatsofarms of deadandgone gentry who were content to shuffle out on inclement mornings to answer nature's ...
— Greener Than You Think • Ward Moore

... a number of rooms of expensive, precision electronic equipment. Then they passed through a set of double doors, which Fenwick observed acted as a thermal lock between the crystal growing room and the rest of the building. It reminded him of ...
— The Great Gray Plague • Raymond F. Jones

... and raising their voices high in thanks. It was easy, thought Bradley. Really, it was a cinch to be a god. The beasts that were such great dangers to them were mere trifles to him. To him, with a gun loaded with a thousand thermal charges each of which was capable of blasting armor plate. The thing wouldn't even have come close if he himself hadn't been such a timid, cowardly fool. Put Malevski in his place, and the detective would have got the creature ...
— Divinity • William Morrison

... the great chains of mornes about it are merely counter-forts; the Piton Pierreux and the Piton Pain—Sucre (Sugar-loaf Peak), and other elevations varying from 800 to 2100 feet, are its volcanic children. Nearly thirty rivers have their birth in its flanks,—besides many thermal springs, variously mineralized. As the culminant point of the island, Pele is also the ruler of its meteorologic life,—cloud- herder, lightning-forger, and rain-maker. During clear weather you can see it ...
— Two Years in the French West Indies • Lafcadio Hearn

... the scientific term, hydro-thermal action—has played such an important part in the deposition of metals that I cannot but think that under educated intelligence it will prove a powerful agent in their extraction. About fourteen years ago ...
— Getting Gold • J. C. F. Johnson

... made it memorable. It was not that the season accentuated the want of enough to eat; nor was it the absence of the time-honoured turkey that tried us most. There was something else besides, namely, the capers of the sun. Thermal phenomena are of course not strictly pertinent to my story. But I feel impelled to digress for a little and warm, as it were, to this new element of discomfort, provided doubtless as a Christmas Box by the thoughtful clerk of the weather. To those of us who were enjoying our first taste of ...
— The Siege of Kimberley • T. Phelan

... were first described by Hayem, later by Bizzozero, as a third formed element of normal blood. They are roundish or oval discs free from haemoglobin. They are extremely unstable under mechanical, thermal, and chemical influences. Their size amounts to some 3 mu. Specially characteristic is their tendency, the result of their extraordinary stickiness, to run together into largish clumps, "grape clusters." This circumstance greatly facilitates the distinction of the ...
— Histology of the Blood - Normal and Pathological • Paul Ehrlich

... the large amount of heat liberated when a metal solidifies, there are other changes indicated by the thermal analysis of many alloys which occur after the body has become entirely solidified. These so-called transformation points or ranges may be caused by chemical reactions taking place within the solid, substances being precipitated from a "solid ...
— The Working of Steel - Annealing, Heat Treating and Hardening of Carbon and Alloy Steel • Fred H. Colvin

... competition with a more vigorous race, it set a high premium on colored blood. It has fostered and multiplied a vigorous black race, and engendered a feeble mulatto breed. Many of each of these classes have drifted northward, right in the teeth of thermal laws, to find homes where they would never live by natural election. Now, by utterly rooting out slavery, and by that means alone, shall we remove these disturbing forces and allow fair play to natural laws, by the operation ...
— Louis Agassiz: His Life and Correspondence • Louis Agassiz

... the electric energy is for the purposes of lighting only, difficulty has been experienced in fully utilizing the thermal energy from a destructor plant owing to the want of adequate means of storage either of the thermal or of the electric energy. A destructor station usually yields a fairly definite amount of thermal energy uniformly throughout the 24 hours, while ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 - "Destructors" to "Diameter" • Various

... fogs were almost invariably high fogs. Sweeping in from the ocean forty miles away, they were deflected by Sonoma Mountain and shunted high into the air. Another thing, Trillium Covert and Madrono Ranch were happily situated in a narrow thermal belt, so that in the frosty mornings of winter the temperature was always several degrees higher than in the rest of the valley. In fact, frost was very rare in the thermal belt, as was proved by the successful cultivation of certain ...
— The Valley of the Moon • Jack London



Words linked to "Thermal" :   heat, air current, thermal pollution, nonthermal, caloric, thermal spring, hot spring, current of air, thermal emission, solar thermal system, thermal equilibrium, thermic, hot, thermal reactor, thermal printer, thermal barrier



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