sector

noun
sec·​tor | \ ˈsek-tər How to pronounce sector (audio) , -ˌtȯr\

Definition of sector

 (Entry 1 of 2)

1a : a geometric figure bounded by two radii and the included arc of a circle
b(1) : a subdivision of a defensive military position
(2) : a portion of a military front or area of operation
c : an area or portion resembling a sector bilingual sector of town— David Kleinberg
d : a sociological, economic, or political subdivision of society cooperation between the public and private sectors— Peter Chapman
2 : a mathematical instrument consisting of two rulers connected at one end by a joint and marked with several scales
3 : a subdivision of a track on a computer disk

sector

verb
sec·​tor | \ ˈsek-tər How to pronounce sector (audio) \
sectored; sectoring\ ˈsek-​t(ə-​)riŋ How to pronounce sectoring (audio) \

Definition of sector (Entry 2 of 2)

transitive verb

: to divide into or furnish with sectors

Keep scrolling for more

Other Words from sector

Noun

sectoral \ ˈsek-​t(ə-​)rəl \ adjective

Examples of sector in a Sentence

Noun

He was assigned to the northern sector. Data is stored on the disk in 512-byte sectors.

Recent Examples on the Web: Noun

Schools are generally not as sensitive to personal privacy threats as some other business sectors that are more highly regulated, such as banks or hospitals. Eve Rosen, sun-sentinel.com, "Florida’s Auditor General focuses on student data protection," 10 Sep. 2019 Like other analysts nationwide, Addy said the probable reason for the slowdowns in manufacturing and other sectors is uncertainty in the face of ongoing trade tensions between the U.S. and China. William Thornton | Wthornton@al.com, al, "Recession fears: What could it mean for Alabama manufacturing?," 6 Sep. 2019 Biden's plan includes spending $1.7 trillion over 10 years, with over $5 trillion in additional investments from the private sector and local and state governments. Grace Segers, CBS News, "Where the 2020 candidates stand on climate change," 4 Sep. 2019 The policy changes of Aug. 23, also included various relief measures for the country’s ailing automobile sector, and a rollback of tax surcharges imposed on wealthy foreign portfolio investors. Pramod Mathew, Quartz India, "Through mega mergers India’s Modi government is creating fewer, stronger banks," 30 Aug. 2019 The merger between the two companies, the biggest ever in the consumer sector and the fourth-largest deal of all time, would create a tobacco giant with a market capitalization of approximately $200 billion. Reuters, The Mercury News, "Philip Morris, Altria said to be in merger talks," 27 Aug. 2019 Agriculture has been the strongest performing sector of Brazil’s economy in recent years, and the US-China trade war has positioned Brazil well to replace the US as the global leader in soybean exports. Time, "The Real Reason the Amazon Is On Fire," 26 Aug. 2019 People fighting against mining and big agriculture projects accounted for the greatest share of deaths, and countries with larger agriculture sectors and more hydroelectric dams tended to have higher numbers of murders per capita. Rachel Nuwer, Scientific American, "Environmental Activists Have Higher Death Rates Than Some Soldiers," 5 Aug. 2019 Coal from mines in the three states fueled a vast metals manufacturing sector in the mid-20th century and generated wages and prosperity never seen before. Keith Schneider, ProPublica, "West Virginia Bets Big on Plastics, and on Backing of Trump Administration," 31 July 2019

Recent Examples on the Web: Verb

Jobs in Houston's professional and business services sector increased 4.9 percent year-over-year, while the nation saw an increase of 2.2 percent. Erin Douglas, Houston Chronicle, "Texas cities gained most jobs in nation in July," 27 Aug. 2019 Banks were among the biggest decliners in the U.S., pulling the S&P 500’s financials sector down 3.4%. Michael Wursthorn, WSJ, "Stocks Tumble on Italy’s Political Instability," 29 May 2018 Construction lost 4,400 jobs, and the trade, transportation and utilities sector lost 1,900 jobs. Andrew Khouri, latimes.com, "California loses jobs in March, though unemployment stays at a record low," 20 Apr. 2018 Over the last five years, total shareholder return at Convergys has lagged the business services sector 7.9 percent to 15.7 percent, according to Morningstar. Alexander Coolidge, Cincinnati.com, "Convergys head, region's only female CEO of public company departing," 26 Jan. 2018 In September, quad witching coincided with major changes to several popular ETFs pegged to sector indexes. Asjylyn Loder, WSJ, "Traders Prep for ‘Quad Witching’ Amid Market Gains," 21 June 2019 Banks were among the biggest decliners in the U.S., pulling the S&P 500’s financials sector down 3.4%. Michael Wursthorn, WSJ, "Stocks Tumble on Italy’s Political Instability," 29 May 2018 Construction lost 4,400 jobs, and the trade, transportation and utilities sector lost 1,900 jobs. Andrew Khouri, latimes.com, "California loses jobs in March, though unemployment stays at a record low," 20 Apr. 2018 Over the last five years, total shareholder return at Convergys has lagged the business services sector 7.9 percent to 15.7 percent, according to Morningstar. Alexander Coolidge, Cincinnati.com, "Convergys head, region's only female CEO of public company departing," 26 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sector.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of sector

Noun

1570, in the meaning defined at sense 1a

Verb

1884, in the meaning defined above

History and Etymology for sector

Noun

Late Latin, from Latin, cutter, from secare to cut — more at saw

Keep scrolling for more

Learn More about sector

Statistics for sector

Last Updated

18 Oct 2019

Look-up Popularity

Time Traveler for sector

The first known use of sector was in 1570

See more words from the same year

Keep scrolling for more

More Definitions for sector

sector

noun

English Language Learners Definition of sector

: an area of an economy : a part of an economy that includes certain kinds of jobs
: an area for which someone (such as a military commander) is responsible
computers : one of the parts that a computer disk is divided into

sector

noun
sec·​tor | \ ˈsek-tər How to pronounce sector (audio) \

Kids Definition of sector

: a part of an area or of a sphere of activity the industrial sector of the economy

Keep scrolling for more

More from Merriam-Webster on sector

Rhyming Dictionary: Words that rhyme with sector

Thesaurus: All synonyms and antonyms for sector

Spanish Central: Translation of sector

Nglish: Translation of sector for Spanish Speakers

Britannica English: Translation of sector for Arabic Speakers

Comments on sector

What made you want to look up sector? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

involving a confidence or trust

Get Word of the Day daily email!

Test Your Vocabulary

Word Puzzles

  • alt 57589b2b4c6a3
  • Which answer pairs best with each of the following words? living, estate, club, music, road, mile
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!