[ sek-ter ]
/ ˈsɛk tər /


verb (used with object)

to divide into sectors.

Origin of sector

1560–70; < Late Latin: sector, Latin: cutter, equivalent to of sec(āre) to cut + -tor -tor


sec·tor·al, adjectivesub·sec·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for sectoral

British Dictionary definitions for sectoral

/ (ˈsɛktə) /


a part or subdivision, esp of a society or an economythe private sector
geometry either portion of a circle included between two radii and an arc. Area: 1/2 r ²θ, where r is the radius and θ is the central angle subtended by the arc (in radians)
a measuring instrument consisting of two graduated arms hinged at one end
a part or subdivision of an area of military operations
computing the smallest addressable portion of the track on a magnetic tape, disk, or drum store

Derived forms of sector

sectoral, adjective

Word Origin for sector

C16: from Late Latin: sector, from Latin: a cutter, from secāre to cut
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sectoral

[ sĕktər ]

The part of a circle bounded by two radii and the arc between them.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.