quad·​rant | \ ˈkwä-drənt How to pronounce quadrant (audio) \

Definition of quadrant

1a : an instrument for measuring altitudes consisting commonly of a graduated arc of 90 degrees with an index or vernier and usually having a plumb line or spirit level for fixing the vertical or horizontal direction
b : a device or mechanical part shaped like or suggestive of the quadrant of a circle
2a : an arc of 90 degrees that is one quarter of a circle
b : the area bounded by a quadrant and two radii
3a : any of the four parts into which a plane is divided by rectangular coordinate axes lying in that plane
b : any of the four quarters into which something is divided by two real or imaginary lines that intersect each other at right angles

Illustration of quadrant

Illustration of quadrant

quadrant 2

Keep scrolling for more

Other Words from quadrant

quadrantal \ kwä-​ˈdran-​tᵊl How to pronounce quadrantal (audio) \ adjective

Did You Know?

This word is used for a traditional instrument, used to make calculations of altitude and traditionally employed by sailors to navigate, which has a piece shaped like a quarter of a circle. A quadrant shower is a shower that fits snugly into a bathroom corner and displays a curved front, making a quadrant shape on the floor. But perhaps quadrant is used most often today to name a particular quarter of a city.

Examples of quadrant in a Sentence

Draw two intersecting lines that divide the page into four quadrants. The town is located in the northwest quadrant of the state.

Recent Examples on the Web

That flag is white, with horizontal and vertical black stripes dividing it into quadrants. Melissa Yeager, azcentral, "New Reno-Phoenix bus service leaves trail of discriminatory rules, chaotic planning," 3 July 2019 So does that make the Glen Park BART Station a token — an architectural oddity located in the southeast quadrant of San Francisco, where relatively few buildings have landmark status? John King, SFChronicle.com, "Glen Park BART Station could soon be an official national treasure," 27 July 2019 In a nod to the first American flag planted on the surface of the moon by astronauts Neil Armstrong and Buzz Aldrin upon landing at Tranquility Base, the installation features four 50-foot quadrants made of more than 4,000 hand-cut flags. Marcy De Luna, Houston Chronicle, "Out-of-this-world installation 'Skywaves' to debut at River Oaks District," 19 July 2019 Mutz adds that Littleton Village’s location is in a quadrant of the metro area where relatively few new apartments are available, despite the proximity to DTC, Lockheed Martin, Lucent Boulevard and other sites. Mark Samuelson, The Denver Post, "Despite lots of pressure to buy, many find a new apartment works well, with better quality and absolutely no maintenance," 18 July 2019 Zhongguancun has spread out from the electronics markets into a sweeping quadrant of northwestern Beijing that takes in its two leading universities, Peking and Tsinghua. The Economist, "China’s Silicon Valley is transforming China, but not yet the world," 11 July 2019 But Baltimore’s new, analytically oriented regime convinced him to scrap his sinker and use a four-seam fastball high in the strike zone with a changeup and slider in the lower quadrants. Peter Abraham, BostonGlobe.com, "Dave Dombrowski made a decisive move in acquiring Andrew Cashner," 14 July 2019 The launch party, hosted by Kroger in partnership with Downtown Indy Inc., will take place in the southwest quadrant of Monument Circle. Emily Sabens, Indianapolis Star, "You can eat a hot dog with legendary competitive eater Joey Chestnut on Monument Circle," 10 July 2019 But Shaker Heights resident Crystal Montgomery said that public restrooms are also needed in the southwest quadrant. Steven Litt, cleveland.com, "Final design recommendations for revamping Shaker Square earn mixed reviews at Sunday unveiling," 30 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quadrant.' 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 quadrant

15th century, in the meaning defined at sense 1a

History and Etymology for quadrant

Middle English, from Latin quadrant-, quadrans fourth part; akin to Latin quattuor four — more at four

Keep scrolling for more

Learn More about quadrant

Statistics for quadrant

Last Updated

15 Aug 2019

Look-up Popularity

Time Traveler for quadrant

The first known use of quadrant was in the 15th century

See more words from the same century

Keep scrolling for more

More Definitions for quadrant



English Language Learners Definition of quadrant

: one part of something that is evenly divided into four parts especially, geometry : one part of a circle that is evenly divided into four parts


quad·​rant | \ ˈkwä-drənt\

Kids Definition of quadrant

1 : one-fourth of a circle
2 : any of the four parts into which something is divided by two imaginary or real lines that intersect each other at right angles


quad·​rant | \ ˈkwäd-rənt How to pronounce quadrant (audio) \

Medical Definition of quadrant

1 : an arc of 90° that is one quarter of a circle
2 : any of the four more or less equivalent segments into which an anatomic structure may be divided by vertical and horizontal partitioning through its midpoint pain in the lower right quadrant of the abdomen

Keep scrolling for more

More from Merriam-Webster on quadrant

Spanish Central: Translation of quadrant

Nglish: Translation of quadrant for Spanish Speakers

Britannica.com: Encyclopedia article about quadrant

Comments on quadrant

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


of or relating to the heavens

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Spell It

Can you spell these 10 commonly misspelled words?


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

Love words? Need even more definitions?

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