Sector

['sektə] or ['sɛktɚ]

Definition

(noun.) measuring instrument consisting of two graduated arms hinged at one end.

(noun.) a particular aspect of life or activity; 'he was helpless in an important sector of his life'.

(noun.) a social group that forms part of the society or the economy; 'the public sector'.

(noun.) a portion of a military position.

(noun.) the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes.

(noun.) a plane figure bounded by two radii and the included arc of a circle.

Typed by Eugenia--From WordNet

Definition

(n.) 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 zenith sector.

Checked by Edmond

Definition

n. that which cuts: that which is cut off: a portion of the circle between two radii and the intercepted arc: a mathematical instrument for finding a fourth proportional: an astronomical instrument: (mech.) a toothed gear the face of which is the arc of a circle.—adjs. Sec′toral; Sectō′rial adapted or intended for cutting.—n. a scissor-tooth.

Typist: Weldon