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Ellipse   Listen
noun
Ellipse  n.  
1.
(Geom.) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique projection of a circle, or an oblique section of a cone through its opposite sides. The greatest diameter of the ellipse is the major axis, and the least diameter is the minor axis. See Conic section, under Conic, and cf. Focus.
2.
(Gram.) Omission. See Ellipsis.
3.
The elliptical orbit of a planet. "The Sun flies forward to his brother Sun; The dark Earth follows wheeled in her ellipse."






Collaborative International Dictionary of English 0.48








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"Ellipse" Quotes from Famous Books



... impossibly long ellipse now, surrounded by a vast array of smaller bodies, fragments and contents of the ship. Now the stricken globe moved completely free of its companion. It rotated, presenting a crescent toward us, then wheeled farther ...
— Greylorn • John Keith Laumer

... quoniam is read and no break made at adducere, all after quoniam will refer to ethics, in that case there will be a strange change of subject in passing from quisquam to haec ipsa, both which expressions will be nominatives to poterit, further, there will be the almost impossible ellipse of ars, scientia, or something of the kind after haec ipsa. On every ground the reading of Madv. is insupportable. Quid, haec ipsa: I have added quid to fill up the lacuna left by Halm, who supposes much more to have ...
— Academica • Marcus Tullius Cicero

... strange to me, but suggested Indian origin. It was long and low, with lofty towers at the corners, and one huge dome in the middle, rising from the roof to half the height of the towers. The main entrance was in the centre of the front—a low arch that seemed half an ellipse. No one was visible, the doors stood wide open, and I went unchallenged into a large hall, in the form of a longish ellipse. Toward one side stood a cage, in which couched, its head on its paws, a huge leopardess, chained ...
— Lilith • George MacDonald

... to counting the number of errors made, it is interesting to note with what forms they occur. To match the circle with the ellipse or the octagon, for example, is a less serious error than to match it with the ...
— The Measurement of Intelligence • Lewis Madison Terman

... not describe a circle round the earth, but an ellipse, of which our earth occupies one of the foci; the consequence is, therefore, that at certain times it approaches nearer to, and at others recedes farther from, the earth, or, in astronomical language, it has its apogee and its perigee. At its apogee ...
— The Moon-Voyage • Jules Verne

... discovers the laws of numbers and figures, and yet, that when he looks abroad into nature, he finds that things are obeying the same laws which he has ascertained for himself in his own mind. Man forms the idea of an ellipse, and ascertains the laws of ellipses. And the heavenly bodies move according to the laws which he has established. (It is not, of course, a question here of the astronomical views of the Pythagoreans. What may be said about these may equally be said of Copernican ...
— Christianity As A Mystical Fact - And The Mysteries of Antiquity • Rudolf Steiner

... the planets are ellipses, because, for all ordinary purposes, that is a sufficiently near approximation to the truth; but, as a matter of fact, the centre of gravity of a planet describes neither an ellipse or any other simple curve, but an immensely complicated undulating line. It may fairly be doubted whether any generalisation, or hypothesis, based upon physical data is absolutely true, in the sense that a mathematical proposition is so; but, if its errors can become apparent only outside ...
— The Advance of Science in the Last Half-Century • T.H. (Thomas Henry) Huxley

... that a weapon with a fission yield of 1 million tons TNT equivalent power (1 megaton) exploded at ground level in a 15 miles-per-hour wind would produce fallout in an ellipse extending hundreds of miles downwind from the burst point. At a distance of 20-25 miles downwind, a lethal radiation dose (600 rads) would be accumulated by a person who did not find shelter within 25 minutes after the time the fallout began. At ...
— Worldwide Effects of Nuclear War: Some Perspectives • United States Arms Control and Disarmament Agency

... nebula. A fret is a series of highly conventionalized spirals: translate it from angular to curved and we have the wave-band; isolate it and we have the volute. Egg and dart are phallic emblems, female and male; or, if you prefer, as ellipse and straight line, they are symbols of finite existence contrasted with infinity. ...
— Architecture and Democracy • Claude Fayette Bragdon

... that in his science, also, similarity of outline does not always indicate identity of character. Compare the different circles,—the perfect circle, in which every point of the periphery is at the same distance from the centre, with an ellipse in which the variation from the true circle is so slight as to be almost imperceptible to the eye; yet the latter, like all ellipses, has its two foci by which it differs from a circle, and to refer it to the family of circles instead of the family of ellipses would be overlooking its true character ...
— Atlantic Monthly, Vol. 9, No. 54, April, 1862 • Various

... Sun is a patriarch, and each of his daughters has her own children who, while obeying the paternal influence of the fiery orb, are also obedient to the world that governs them. These secondary asters, or satellites, follow the planets in their course, and revolve round them in an ellipse, just as the others rotate round the Sun. Every one knows the satellite of the Earth, the Moon. All the other planets of our system have their own moons, some being even more favored than ourselves in this respect, and having several. Mars has two; Jupiter, five; Saturn, eight; Uranus, four; and ...
— Astronomy for Amateurs • Camille Flammarion

... ill qualified to sustain a comparison with the awful temples of the middle ages, is not without grace and dignity. Near the Cathedral rose the palace of the Bishop, whose see was one of the most valuable in Ireland. The city was in form nearly an ellipse; and the principal streets formed a cross, the arms of which met in a square called the Diamond. The original houses have been either rebuilt or so much repaired that their ancient character can no longer be traced; but many of them were standing within living memory. They were in general two ...
— The History of England from the Accession of James II. - Volume 3 (of 5) • Thomas Babington Macaulay

... I consists of only half an ellipse, the southern half being replaced by the area H, which we have already described. It has a rectangular niche to the west containing a fine trilithon with a cover-slab ...
— Rough Stone Monuments and Their Builders • T. Eric Peet

... The summit or highest level of it is in the southwest; longest diameter is from northwest to southeast. From Crossen, whither Friedrich is now driving, to the Jablunka Pass, which issues upon Hungary, is above 250 miles; the AXIS, therefore, or longest diameter, of our Ellipse we may call 230 English miles;—its shortest or conjugate diameter, from Friedland in Bohemia (Wallenstein's old Friedland), by Breslau across the Oder to the Polish Frontier, is about 100. The total area of Schlesien is counted ...
— History of Friedrich II. of Prussia, Vol. XII. (of XXI.) • Thomas Carlyle

... each, and reveals the demand for a special training. This divergence, however, is limited in its sweep and its duration. The difference exists for a definite purpose, and goes only to a definite extent. The curves of separation swell out as childhood recedes, like an ellipse, and, as old age draws on, approach, till they unite like an ellipse again. In old age, the second childhood, the difference of sex becomes of as little note as it was during the first. At that period, the ...
— Sex in Education - or, A Fair Chance for Girls • Edward H. Clarke

... territorial flag is dark blue with a narrow red border on all four sides; centered is a red-bordered, pointed, vertical ellipse containing a beach scene, outrigger canoe with sail, and a palm tree with the word GUAM superimposed in bold red letters; US flag is ...
— The 2000 CIA World Factbook • United States. Central Intelligence Agency.

... houses, and two chapels or churches. Four great towers were erected at the cardinal points, and the vast galleries and arcades were a very warren of human habitations. Constructed of huge blocks of limestone, laid without cement, the amphitheatre forms an ellipse, whose axis measures four hundred and twenty feet by three hundred and ten feet. It is said to be able to contain twenty-six thousand spectators, which is just two thousand five hundred more persons than the entire ...
— In Troubadour-Land - A Ramble in Provence and Languedoc • S. Baring-Gould

... had become an oval, a flattened ellipse another five hundred feet high and three times that in length. And in its exact center, shining forth as though it opened into a place of pale azure incandescence was another ...
— The Metal Monster • A. Merritt

... the plane, sections of a cone. It is an oval curve, which may be drawn by fixing two pins in a sheet of paper at S and H, fastening a string, SPH, to the two pins, and stretching it with a pencil point at P, and moving the pencil point, while the string is kept taut, to trace the oval ellipse, APB. S and H are the foci. Kepler found the sun to be in one focus, say S. AB is the major axis. DE is the minor axis. C is the centre. The direction of AB is the line of apses. The ratio of CS to CA is the excentricity. The position of the planet at A is the perihelion (nearest ...
— History of Astronomy • George Forbes

... in the cave (Number 3) was an ellipse, three feet in length and one foot ten inches in breadth: the outside line of this painting was of a deep blue colour, the body of the ellipse being of a bright yellow dotted over with red lines and spots, whilst across it ran two transverse lines ...
— Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 1 (of 2) • George Grey

... on a drawing board by the pen. There is no limit, theoretically, to the number of pendulums that can be combined in this manner. The movements are rectilinear, but two rectilinear vibrations of equal amplitude acting at right angles to each other generate a circle if they alternate precisely, an ellipse if the alternations are less regular or the amplitudes unequal. A cyclic vibration may also be obtained from a pendulum free to swing in a rotary path. In these ways a most wonderful series of drawings have been obtained, and the similarity of these ...
— Thought-Forms • Annie Besant

... proving, that, if a body in space, free to move, received a single impulse, and at the same moment was attracted to a fixed centre by a force which diminished as the square of the distance at which it operated increased, such a body, thus deflected from its rectilinear path, would describe an ellipse," etc. Not only does this deduction, being made ...
— Atlantic Monthly Vol. 6, No. 33, July, 1860 • Various

... one direction; and the hyperbolic curve, that never returns into itself at all, but has, on the other hand, a course which sets outwards each way for ever. The parabolic curve, as it is called, is a line partaking of the closeness of the ellipse on the one hand, and the openness of the hyperbola on the other. A parabola is an ellipse passing into a hyperbola; or, in other words, it is a part of an ellipse whose length, compared with its breadth, is too great to ...
— Chambers's Edinburgh Journal, No. 450 - Volume 18, New Series, August 14, 1852 • Various

... be really shown by examples, just because it is continuous and periodic. If we except the speeches, each of which by the necessity of the case is more or less a definite and detachable unit, the periods flow into one another. Like the orbit of a planet, the movement of the verse never closes its ellipse and begins again. Each of the twelve books is a single organic rhythmical structure. But one cannot very well ...
— The Principles of English Versification • Paull Franklin Baum

... engineer, laughing, "whether just or not, we must submit to it, and here lies the reason for this peculiarity. The earth does not describe a circle round the sun, but an ellipse, as it must by the laws of rational mechanics. Now, the earth occupies one of the centres of the ellipse, and consequently, at the time of its transfer, it is further from the sun, that is to say, at its apogee, and at another time nearer, that is to say, at its perigee. Now ...
— The Secret of the Island • W.H.G. Kingston (translation from Jules Verne)

... ingenious machine, specially devised for the purpose, Professor Marey found that a bird's wing moves in an ellipse, with a pointed summit (Fig. 10). The insect beats the air in a distinctly horizontal plane, but the bird in a vertical plane. The wing of an insect is impervious to the air; while the bird's wing resists the air only on its under side. Hence, there are two sorts of effects; in ...
— Our Common Insects - A Popular Account of the Insects of Our Fields, Forests, - Gardens and Houses • Alpheus Spring Packard

... this spot, where still may be seen a mound and an ellipse showing the outline of the stockade, is the famous Pilot Knob, from the summit of which the fields surrounding the town lie visible in their smooth expanse. During Findlay's stay at the Indian town other traders from Pennsylvania and ...
— The Conquest of the Old Southwest • Archibald Henderson

... ultimate matter is reduced to that of an oblate spheroid described by the revolution of an ellipse on its ...
— Defenders of Democracy • The Militia of Mercy

... figure. This is again found on the body of the snake in Plate LX, and in other places. Other important questions can be settled by comparison of the two plates. For example, at Palenque we often find a sign composed of a half ellipse, inside of which bars are drawn. I shall elsewhere show that there is reason to believe the ellipse is to represent the concave of the sky, its diameter to be the level earth, and in some cases at least the bars to be the descending and fertilizing rain. The bars are ...
— Studies in Central American Picture-Writing • Edward S. Holden

... other are so courteous and restrained. In alternate curves and graceful sallies, they pursue and circumvent each other. First one hops a few feet, then the other, each one standing erect in true military style while his fellow passes him and describes the segment of an ellipse about him, both uttering the while a fine complacent warble in a high but suppressed key. Are they lovers or enemies? the beholder wonders, until they make a spring and are beak to beak in the twinkling of an eye, and perhaps mount a few feet into the air, but rarely actually delivering blows ...
— The Writings of John Burroughs • John Burroughs

... attraction on the planets next to it. If these bodies did not attract one another at all, but only moved under the influence of the sun, they would move in orbits having the form of ellipses. They are found to move very nearly in such orbits, only the actual path deviates from an ellipse, now in one direction and then in another, and it slowly changes its position from year to year. These deviations are due to the pull of the other planets, and by measuring the deviations we can determine the amount of the pull, and hence ...
— Side-lights on Astronomy and Kindred Fields of Popular Science • Simon Newcomb

... unwilling to take much aye doth heed'; 'which is nonsense' says Prof. Skeat. But the sentence is an example of ellipse, a figure which Chatterton affected a good deal, and fully expressed would run 'She—not willing to take much, ever doth heed not to take much', which would of course be ...
— The Rowley Poems • Thomas Chatterton

... angry disdain in Layroh's resonant voice. "They who slumber here are a race born far from this planet. They are the Shining Ones of Rikor. Rikor is a tiny planet circling a wandering sun whose orbit is an ellipse so vast that only once in a hundred thousand years does it approach your solar system. Rikor's sun was nearly dead and the Shining Ones had to find a new home soon or else perish. Then their planet swung near the Earth, and their scouts ...
— The Cavern of the Shining Ones • Hal K. Wells

... proportionality of the areas to the times of their description, Newton inferred that the force which keeps a planet in its orbit is always directed to the sun. From the first law of Kepler, that every planet moves in an ellipse with the sun in one of its foci, he drew the still more general inference that the force by which the planet moves round that focus varies inversely as the square of its distance from the focus. From the third law of Kepler, which connects the distances and periods of the planets by ...
— The World's Greatest Books, Vol IX. • Edited by Arthur Mee and J.A. Hammerton

... an orbit that will get us out of the asteroid belt without any collisions, take us as close to the sun as possible without having it capture us, and land us in space about ten thousand miles from earth. From then on I'll throw the asteroid into a braking ellipse around the earth and I'll be able to ...
— Rip Foster Rides the Gray Planet • Blake Savage

... watch, and this, I think, was Jervis's opinion. But the small part which remains of the original edge furnishes proof in two respects that this was not a watch-glass. In the first place, on taking a careful tracing of this piece of the edge, I found that its curve was part of an ellipse; but watch-glasses, nowadays, are invariably circular. In the second place, watch-glasses are ground on the edge to a single bevel to snap into the bezel or frame; but the edge of this object was ground to a double bevel, like the edge of a ...
— The Mystery of 31 New Inn • R. Austin Freeman

... nearly circular walled-plain, 111 miles in diameter, situated close to the N.W. limb, and consequently always foreshortened into a more or less elongated ellipse. But for this it would be one of the grandest objects in the first quadrant. Under the designation of "Mercurius Falsus" it received great attention from Schroter, who gives several representations of it in his Selenotopographische Fragmente, which, though drawn in his ...
— The Moon - A Full Description and Map of its Principal Physical Features • Thomas Gwyn Elger

... in wonder, and presently, at the distance, perhaps, of a little less than a mile, descried an innumerable herd of horses streaming across these level pastures, and at the extremity, it seemed, of a wide ellipse, that had brought them near, and ...
— Henry Brocken - His Travels and Adventures in the Rich, Strange, Scarce-Imaginable Regions of Romance • Walter J. de la Mare

... movement which is developed taxes the computing genius of the ablest astronomer. The path which our earth follows around the sun, though it may in general and for convenience be described as a variable ellipse, is, in fact, a line of such complication that if we should essay a diagram of it on the scale of this page it would not be possible to represent any considerable part of its deviations. These, in fact, would elude depiction, even if the draughtsman had a sheet for his ...
— Outlines of the Earth's History - A Popular Study in Physiography • Nathaniel Southgate Shaler

... a circle with a single centre; he is an ellipse with a double focus. Facts form one of these, and ideas ...
— Les Miserables - Complete in Five Volumes • Victor Hugo

... second, not altogether insignificant, use of these words and distinctions, we sometimes find in the examination of a literary composition such remarks as follow: here is a pleonasm, here an ellipse, there a metaphor, here again a synonym or an equivoke. This means that in one place is an error consisting of using a larger number of words than is necessary (pleonasm); that in another the error arises from too few having been used (ellipse), elsewhere from the use of an unsuitable ...
— Aesthetic as Science of Expression and General Linguistic • Benedetto Croce

... of their mystical affinity is what haunts you as you make your round of the vast ellipse, with the well-groomed men about you and the well-groomed horses ...
— Henry James, Jr. • William Dean Howells

... declarations,—again and again I ask:- What am I to substitute? What other sense is conceivable that does not destroy the doctrine which it professes to interpret—that does not convert it into its own negative? As if a geometrician should name a sugar- loaf an ellipse, adding—"By which term I here mean a cone;"—and then justify the misnomer on the pretext that the ellipse is among the conic sections! And yet—notwithstanding the repugnancy of the doctrine, in its unqualified sense, ...
— Confessions of an Inquiring Spirit etc. • by Samuel Taylor Coleridge

... a sun in a group of seventeen suns, is it not? The gravitational field about even two suns is so exceedingly complex that a planet could take up an orbit only such that one sun was at each of the two foci of the ellipse of its orbit, and then only provided the suns were of very nearly the same mass, and stationary, which in turn means they must have no attraction for each other. No, I think his complex system of seventeen suns would not be so good for planets. Celestial Mechanics ...
— Skylark Three • Edward Elmer Smith

... in plan, are built side by side in two parallel lines, which are connected at the ends by other kilns so as to make a complete circuit. The original form of the complete series was elliptical in plan, but the tendency in recent years has been to flatten the sides of the ellipse and bring them together, thus giving two parallel rows joined at the ends by a chamber or passage at right angles. Coal or gas is burnt in the chamber or section that is being fired-up, the air necessary for the combustion being heated on its passage through the kilns ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 - "Brescia" to "Bulgaria" • Various

... equilibrium under the joint action of these two forces, and which is such as would have been assumed by a fluid body actuated by them. The figure that fulfils these conditions is an oblate spheroid, the axis of the generating ellipse coinciding with the polar diameter of the body. Had the earth a figure absolutely spherical, or less flattened than is consistent with the conditions of equilibrium, the ocean, by which so large a part of its surface is covered, would have arranged itself in a meniscoid zone around its ...
— The American Quarterly Review, No. 17, March 1831 • Various

... proper care in the formation of the lens: "It can be shown upon mathematical data that a lens similar to that given in the following diagram—one surface of which is a section of an ellipse, and the other of a circle struck from the furthest of the two foci ...
— American Handbook of the Daguerrotype • Samuel D. Humphrey

... air was very clear, the temperature very low; when the sun appeared above the horizon it appeared like an elongated ellipse; its horizontal diameter appeared, in consequence of refraction, to be double its vertical diameter. It sent forth its clear, cold rays over the vast icy plain. This return to light, if not ...
— The Voyages and Adventures of Captain Hatteras • Jules Verne

... officers in all riding in this race. The race course was a large three-mile ring of the form of an ellipse in front of the pavilion. On this course nine obstacles had been arranged: the stream, a big and solid barrier five feet high, just before the pavilion, a dry ditch, a ditch full of water, a precipitous slope, an Irish barricade (one of the most difficult obstacles, ...
— Anna Karenina • Leo Tolstoy

... in charge by the scouts, with Jupiter for their chief, and are forced to accompany the fleet, but not all are impressed. If a strange comet undertakes to run across Jupiter's bows the latter brings it to, and makes prize of it by throwing it into a relatively small ellipse with the sun for its focus. Thenceforth, unless, as happened to the unhappy comet of Lexell, it encounters Jupiter again in such a way as to be diverted by him into a more distant orbit, it can never get away. About thirty comets are now known to have thus been captured ...
— Curiosities of the Sky • Garrett Serviss

... a formula of mathematics, to which the neophyte can refer for deductions of Grace to suit any premises or conditions. This, of course, is contrary to the spirit of beautiful design; and the ingenious Hay,—who maintains that his "composite ellipse" is capable of universal application in the arts of ornamental composition, and that by its use any desirable lines in mouldings or vases can be mechanically produced, especially Greek lines, falls into ...
— Atlantic Monthly, Vol. 7, No. 44, June, 1861 • Various

... each living creature lifting up its voice in protest against the sudden disturbance of its hitherto even and well-ordered life. At the end of the field, opposite the gate, a rocky and uneven road, in the shape of an ellipse, served as the race track. A grand-stand, formed by nature from a grassy knoll, covered with sweet-smelling pines, rose at one side, and made a convenient and delightful ...
— Treasure Valley • Marian Keith

... years a satisfactory explanation was sought unsuccessfully by Bradley and his fellow-astronomers, but at last he was able to demonstrate that the stary Draconis, on which he was making his observations, described, or appeared to describe, a small ellipse. If this observation was correct, it afforded a means of computing the aberration of any star at all times. The explanation of the physical cause of this aberration, as Bradley thought, and afterwards demonstrated, was the result of the combination of the motion of light with the ...
— A History of Science, Volume 3(of 5) • Henry Smith Williams



Words linked to "Ellipse" :   oval, elliptic, conic section, elliptical, circle



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