Definition, synonyms and related words
plural of sector
"The company is expanding its operations into three new market sectors, including healthcare and renewable energy."
In plain English: Sectors are separate parts of a whole that are divided for organization or study.
"The company decided to launch its new marketing campaign in the retail sector first."
Derived from the Latin sector, which comes from secare meaning to cut, this term originally referred to a wedge-shaped piece of a circle or sphere created by such cutting. It later evolved in English to denote any distinct segment or division within a larger whole.