American Heritage® Dictionary of the English Language, Fourth Edition
- n. Mathematics The portion of a circle bounded by two radii and the included arc.
- n. Mathematics A measuring instrument consisting of two graduated arms hinged together at one end.
- n. A division of a defensive position for which one military unit is responsible.
- n. A division of an offensive military position.
- n. A part or division, as of a city or a national economy: the manufacturing sector; the private sector.
- n. Computer Science A portion of a magnetic storage device making up the smallest addressable unit of information.
- v. To divide (something) into sectors.
Century Dictionary and Cyclopedia
- n. In geometry:
- n. A plane figure inclosed between the arc of a circle, ellipse, or other central curve and two radii to its extremities from the center. Thus, in the figure, CDB is a sector of a circle.
- n. A solid generated by the revolution of a plane sector about one of its radii.
- n. A mathematical rule consisting of two flat pieces connected by a stiff rule-joint so that the broad sides move in their own planes, and bearing various scales, especially double scales which are scales of trigonometric functions, etc., duplicated on the two pieces and radiating from the center of the joint. The joint is opened until the distance between two certain corresponding points is equal to the indicated trigonometric line for a given radius, when the distances between all the corresponding points on all the double scales are equal to the respective trigonometric lines for the same radius.
- n. An astronomical instrument consisting of a telescope turning about the center of a graduated arc. It was formerly used for measuring differences of declination. See zenith-sector.
- n. In mech., a toothed gear of which the face is an arc of a circle, intended for reciprocating action. See cut under operating-table.
- n. In entomology, one of the veins of the wing of some insects, as the ephemerids; a branch of the cubitus.
- n. A cutting implement or device.
- n. section
- n. zone (designated area)
- n. geometry A part of a circle, extending to the center.
- n. computing a fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)
- n. military An area designated by boundaries within which a unit operates, and for which it is responsible.
- n. military One of the subdivisions of a coastal frontier.
- n. science fiction a fictional region of space designated for navigational or governance purposes; for instance, W:Sector (Star Trek), W:List of Star Wars sectors
GNU Webster's 1913
- n. (Geom.) A part of a circle comprehended between two radii and the included arc.
- n. 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.
- n. 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
- n. a particular aspect of life or activity
- n. measuring instrument consisting of two graduated arms hinged at one end
- n. a plane figure bounded by two radii and the included arc of a circle
- n. the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes
- n. a portion of a military position
- n. a social group that forms part of the society or the economy
- Late Latin, from Latin, cutter, from sectus, past participle of secāre, to cut; see sek- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Best Co. has revised its rating outlook for the title sector to stable from negative, principally due to the improvement in operating performance over the past year, as well as the significantly improved balance sheet strength of the major title insurers, which A.M.”
“As such, the sector is usually the first to react to positive and negative economic developments.”
“Behind the "woebetide the poor UK web start-up" debate, European activity in this sector is accelerating significantly, and the implications are no less profound.”
“In other words, what we refer to as sector work is not sufficiently coordinated as part of organising work of the department, nor is there an ongoing monitoring of the extent to which different sectors of the motive forces are sufficiently attended to.”
“Harper said it's "flagrant discrimination" against the Canadian sealing industry, which he described as a sector that employs "hard-working people who are also of modest means.”
“Analyst Michael Dudas said current valuations do not reflect what he called the sector's”
“At the moment, our medical sector is very inefficient so our cost-quality curve is in a very unfavorable location.”
“In the old-fashioned approach where the purpose of the finance sector is to facilitate the plans of industry and consumers, housing reform is really quite important, since mortgage income is part of the bread and butter of the old fashioned finance sector.”
“This has happened in sector after sector of government, at every level.”
“If the banking sector is still on life support and the economy is still shrinking 20+ months from now, then we really are back in Hoover/FDR territory.”
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