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 Definitions for sector: The Collaborative International Dictionary of English v.0.48
: 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]
WordNet (r) 2.0
: sector
n 1: a plane figure bounded by two radii and the included arc of
a circle
2: a body of people who form part of society or economy; "the
public sector"
3: a particular aspect of life or activity; "he was helpless in
an important sector of his life" [syn: sphere]
4: the minimum track length that can be assigned to store
information; unless otherwise specified a sector of data
consists of 512 bytes
5: a portion of a military position
6: measuring instrument consisting of two graduated arms hinged
at one end
Moby Thesaurus II by Grady Ward, 1.0
: 36 Moby Thesaurus words for "sector":
adjunct, component, contingent, crescent, cross section,
detachment, detail, district, division, dole, fraction,
half circle, hemicycle, installment, item, parcel, part,
particular, percentage, portion, precinct, quadrant, quarter,
quota, random sample, remainder, sample, sampling, section,
segment, semicircle, sextant, share, subdivision, subgroup,
subspecies
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Circular sector - Wikipedia, the free encyclopedia The area of the sector can be obtained by multiplying the circle's area by the ... Definition and properties of a circle sector With interactive animation ...
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