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Sector   Listen
noun
Sector  n.  
1.
(Geom.) A part of a circle comprehended between two radii and the included arc.
2.
A mathematical instrument, consisting of two rulers connected at one end by a joint, each arm marked with several scales, as of equal parts, chords, sines, tangents, etc., one scale of each kind on each arm, and all on lines radiating from the common center of motion. The sector is used for plotting, etc., to any scale.
3.
An astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector.
Dip sector, an instrument used for measuring the dip of the horizon.
Sector of a sphere, or Spherical sector, the solid generated by the revolution of the sector of a circle about one of its radii, or, more rarely, about any straight line drawn in the plane of the sector through its vertex.






Collaborative International Dictionary of English 0.48








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"Sector" Quotes from Famous Books



... battalion waited with ever-growing impatience for the order that would send them "up the line," a group of officers was gathered in the senior major's hut for the purpose of studying in detail some photographs, secured by our aircraft, of the enemy trenches immediately opposite their own sector of the front line. They had finished their study, and were engaged in the diverting and pleasant exercise of ragging each other. The particular subject of that discussion was their various sprinting abilities, and the comparative usefulness of various kinds of funk-holes as a protection against ...
— The Sky Pilot in No Man's Land • Ralph Connor

... latter act, through an anchor escapement, upon a system of wheels. An axle, set in motion by the latter, revolves one way or the other, according to the direction of the telescope's motions. This axle is provided with an endless screw that gears with a toothed sector, and the latter controls the rotatory axis of the alidade. The elements of the toothed wheels and the number of revolutions of the armature for a given displacement of the telescope being properly calculated, it will be seen that the alidade will be able to follow ...
— Scientific American Supplement, No. 363, December 16, 1882 • Various

... "This is an important election Daddy! How could you possibly relax? There're seventy-three seats in question ... the whole balance. If things go wrong in just the Alkes sector ... why ... you could be sent back to the floor. You'd lose your job as ... why ... someone else ...
— Operation Haystack • Frank Patrick Herbert

... this," he said, in another and entirely different language. "I know, chattel slavery's an established custom on this sector, and we have to conform to local usages, but it sickens me to have to haggle with these swine over the price of human beings. On the Zarkantha Sector, we used nothing but ...
— Time Crime • H. Beam Piper

... that we may be useful and able to offer a certain amount of advice. So many of the refugees are young women who have suffered impossible things and may require special care and shelter. Besides, I am very deeply anxious to see more of the country. We expect to travel south in the sector the Germans held three years ago. I will thus be able to find out how much restoration work has already been accomplished and how great a task remains. Moreover, Aunt Patricia dear, I have a personal errand. Surely you ...
— The Campfire Girls on the Field of Honor • Margaret Vandercook

... with the troops quartered in this particular sector was a moving picture machine and many reels of film. But, as Sam Drew had said, ...
— The Moving Picture Boys on the War Front - Or, The Hunt for the Stolen Army Films • Victor Appleton

... we'll have much time to look for them, if the fighting keeps up as fiercely as it has," and Jerry handed his chums a paper he had purchased, which gave a detailed account of some of the first fighting of the American Expeditionary Force, in the Toul sector, at Seicheprey. This fighting had taken place in April, and it was late in June when Ned, Bob and Jerry, with others from their camp, were on their way to France in that great movement of troops which was to prove the turning, and winning, point of the war. The account in the paper of the fighting ...
— Ned, Bob and Jerry on the Firing Line - The Motor Boys Fighting for Uncle Sam • Clarence Young

... a year's service as a camion driver with the French amry in the Chemin-des-Dames sector and a year's service with the A.E.F. as an infantry private on special duty with "The Stars and Stripes," the official A.E.F. newspaper. Most of them were drawn at odd minutes during the French push of 1917 near Fort ...
— "I was there" - with the Yanks in France. • C. LeRoy Baldridge

... all the launching-crews took shots at an inflated metal-foil target. The Pretender of Tralee displayed an unexpected gift for organization. He divided all space outside the ship into sectors, assigning one launcher to each sector. If an order to fire came, the separate crews would cover targets in their own areas first. There would be no waste of missiles ...
— Talents, Incorporated • William Fitzgerald Jenkins

... Cumjnj sector Laconice lunae. Coruus aquat. Ne incalceatus in montes. Domj Milesia Sacra hec non aliter constant. Gallus insistit Leonis vestigia quaeris (ostentation with couardize) fumos vendere Epiphillides. ...
— Bacon is Shake-Speare • Sir Edwin Durning-Lawrence

... he made off at top speed. Yet, the Boche brought off two coups that were, no doubt, pleasing to him! It should be mentioned that the British had one, sometimes two, observation balloons in this sector, from which the enemy's line, and the country behind it, could be seen very distinctly indeed, thus enabling our artillery to make it very unpleasant for any of the enemy's troops, not entrenched; the Turk, on the other hand, had no such opportunities. Our balloons, therefore, ...
— Through Palestine with the 20th Machine Gun Squadron • Unknown

... Harrington's eye. He puffed slowly at his pipe and slid a piece from the center toward the sector of the board nearest him. Blount whistled softly ...
— Uller Uprising • Henry Beam Piper, John D. Clark and John F. Carr

... of the Ross rifle of the Canadian Division. The Ross has a sound at a distance, for all the world like a lot of men chopping wood in a hardwood forest. No wonder the Germans knew when the Canadians came opposite their sector. Whenever they heard the Ross they generally got an attack of nerves and would fire wildly into the air on ...
— The Red Watch - With the First Canadian Division in Flanders • J. A. Currie

... gained a personal view of all this activity of strife, and from many men in its whirlpool details of their own adventure and of general progress or disaster on one sector of the battle-front. Then in divisional headquarters we saw the reports of the battle as they came in by telephone, or aircraft, or pigeon-post, from half-hour to half-hour, or ten minutes by ten minutes. Three divisions widely ...
— Now It Can Be Told • Philip Gibbs

... last night in the city over here in the main park of C Sector, walking in the restless crowds, trying to settle his thoughts. He moved through slow aimless eddies of brightly appareled citizens, avoiding other pedestrians, skaters and the heavy, four-wheeled autoscooters. Everything was dully, uncompromisingly the same as in his own sector, even ...
— DP • Arthur Dekker Savage



Words linked to "Sector" :   allocation unit, social group, measuring system, aspect, battleground, piece of land, military machine, sectorial, facet, measuring instrument, parcel, war machine, tract, economy, two-dimensional figure, armed services, piece of ground, society, arc, business, sphere



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