Sector

Sector
Sector Sec"tor, n. [L., properly, a cutter, fr. secare, sectum, to cut: cf. F. secteur. See {Section}.] 1. (Geom.) A part of a circle comprehended between two radii and the included arc. [1913 Webster]

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. [1913 Webster]

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. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • sector — SECTÓR, sectoare, s.n. 1. (mat.) Porţiune dintr un plan limitată de două drepte concurente şi de arcul unei curbe cuprins între cele două drepte; mulţimea punctelor din interiorul unei sfere, situată în interiorul conului având ca bază un cerc… …   Dicționar Român

  • sector — sustantivo masculino 1. Parte de una ciudad o lugar: El incendio afectó a un sector del edificio. Se han construido viviendas en el sector sur de Barcelona. Sinónimo: zona. 2. Parte de un grupo: el sector más izquierdista del partido. 3. Cada una …   Diccionario Salamanca de la Lengua Española

  • Sector — may refer to: * Sector, Devon, a location in the county of Devon in south western England * Sector, West Virginia, an unincorporated community in Hampshire County, West Virginia, United States of America * Sector (economic): one of several… …   Wikipedia

  • sector — (Del lat. sector, ōris). 1. m. Parte de una ciudad, de un local o de cualquier otro lugar. Vive en el sector norte de la ciudad. 2. Cada una de la partes de una colectividad, grupo o conjunto que tiene caracteres peculiares y diferenciados. Su… …   Diccionario de la lengua española

  • Sector 4 — can refer to:*Sector 4 (Bucharest), an administrative sector of Bucharest *Sector 4 (band), a Florida based music band …   Wikipedia

  • SECTOR — Asconio etstimator fuit ac redemptor bonorum damnati atque proscripti. Aestimabat nempe quanti essent, et redimebat ab his, qui sectionem vendebant, ut, quod pactum esset, illis redderet in pecunia, quod in rebus aut iure earum persequendarum… …   Hofmann J. Lexicon universale

  • Sector 17 — is the commercial center of Chandigarh, India having number of banks with their offices here. Sector 17 also has the ISBT of Chandigarh, it is a center for people of Chandigarh for their social gathering It is surrounded by Sec 22,Sec 16, Sec 18… …   Wikipedia

  • sector — privado sector público Informática. En informática, espacio más pequeño disponible en la superficie de un disco. Una pista está dividida en subsecciones idénticas que se llaman sectores y que contienen los datos almacenados. En economía, cada una …   Diccionario de Economía Alkona

  • sector — privado sector público Informática. En informática, espacio más pequeño disponible en la superficie de un disco. Una pista está dividida en subsecciones idénticas que se llaman sectores y que contienen los datos almacenados. En economía, cada una …   Diccionario de Economía

  • sector — (n.) 1570, section of a circle between two radii, from L.L. sector section of a circle, from L. sector a cutter, from sectus, pp. of secare to cut (see SECTION (Cf. section)). Translated Gk. tomeus in Latin editions of Archimedes. Meaning area,… …   Etymology dictionary

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