- The definition of a sector is a separate or distinct area or part of something larger.
The part of the economy controlled by technology companies is an example of the tech sector.
sector definition by Webster's New World
- part of a circle bounded by any two radii and the arc included between them
- a mathematical instrument consisting of two rulers marked with various scales and jointed together at one end, used in solving problems, measuring angles, etc.
- any of the districts into which an area is divided for military operations
- a distinct part of society or of an economy, group, area, etc.; section; segment
Origin: Late Latin ; from Classical Latin cutter ; from sectus, past participle of secare, to cut: see saw
- sectoral adjective
sector definition by American Heritage Dictionary
- Mathematics a. The portion of a circle bounded by two radii and the included arc.b. A measuring instrument consisting of two graduated arms hinged together at one end.
- a. A division of a defensive position for which one military unit is responsible.b. A division of an offensive military position.
- A part or division, as of a city or a national economy: the manufacturing sector; the private sector.
- Computer Science A portion of a magnetic storage device making up the smallest addressable unit of information.
Origin: Late Latin, from Latin, cutter, from sectus, past participle of secāre, to cut; see sek- in Indo-European roots.
- sec·toˈri·al adjective
sector - Business Definition
- A group of securities (such as airline stocks) that share certain common characteristics. Stocks that are particularly interest sensitive are considered a sector.
- An industry or field of economic activity: The housing sector can be expected to encounter substantial difficulty if long-term interest rates experience a major increase.
sector - Computer Definition
sector - Investment & Finance Definition
A group of companies that are in the same industry. For instance, there is a technology sector and a health care sector.
sector - Science Definition