sector /ˈsɛktɚ/ noun
plural sectors
plural sectors
Learner's definition of SECTOR
: an area of an economy : a part of an economy that includes certain kinds of jobs see also private sector, public sector
: an area for which someone (such as a military commander) is responsible
computers : one of the parts that a computer disk is divided into
geometry : an area in a circle that lies between two straight lines drawn from the center of the circle to the edge of the circle