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

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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 In 1968, black median family income ranked in the 25th centile of the national income distribution; this meant that the income of black families fell within this bottom quadrant of American families. Adolph Reed Jr., The New Republic, "The Surprising Cross-Racial Saga of Modern Wealth Inequality," 29 June 2020 However, this time around Fairview Park added five additional meters to gain insight into the southwest quadrant of the city south of Lorain Road and west of W. 220th Street. John Benson, cleveland, "Fairview Park studying flooding issues in Ward 5," 11 June 2020 Old Republic Title has leased 3,010 square feet of space in Firewheel Market, a specialty retail center located at the northeast quadrant of State Highways 78 and 190. Steve Brown, Dallas News, "Deal will bring hotel to Ennis, industrial space in Dallas, Southlake gains tenants in this week’s real estate moves," 12 June 2020 The program is expected to begin this year in the city’s northwest quadrant. cleveland, "Mayfield Heights sidewalk replacement program set to begin this year," 12 June 2020 Just squeeze a puddle of ranch on the upper quadrant of your plate and replenish as needed. Alex Beggs, Bon Appétit, "The Perfect Jet’s Pizza Order Includes the $4 Squeeze Bottle of Ranch," 20 May 2020 That work includes line and culvert replacement, source tracking of outfalls such as high ecoli counts, manholes, and a three-year program to rehabilitate sewers in the northeast quadrant of the city. Thomas Jewell, cleveland, "Shaker Heights proceeds with issue of $3.4 million in notes for street, sewer improvements," 14 Apr. 2020 The church went under contract last year to purchase the industrial property near the northeast quadrant of Interstate 10 and Beltway 8 with the intention of turning the collection of warehouses and empty grain silos into a flagship worship center. Nancy Sarnoff, Houston Chronicle, "Hope City church moving forward with silos real estate project," 26 Feb. 2020 Attendees on Sunday approved of recent refinements in the plan, among them the decision to simplify the landscaping, to retain head-in parking, and to include a set of public restrooms in the northeast quadrant of the square. 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.

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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

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Time Traveler for quadrant

Time Traveler

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

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Statistics for quadrant

Last Updated

11 Jul 2020

Cite this Entry

“Quadrant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadrant. Accessed 14 Jul. 2020.

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More Definitions for quadrant


How to pronounce quadrant (audio)

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

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More from Merriam-Webster on quadrant

Spanish Central: Translation of quadrant

Nglish: Translation of quadrant for Spanish Speakers

Britannica.com: Encyclopedia article about quadrant

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