a part of a field of activity, esp of business, trade, etc
employment in the public sector
a portion of a military area of operation
a part of a circle consisting of two radii and the portion of the circumference between them: compare segment1
in computing, a section of a storage device such as a floppy disk that forms the smallest unit of storage
a mathematical measuring device with two graduated arms hinged at one end
sectoral adj
[late Latin from Latin sector cutter, from secare to cut]