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 quadrant (audio) \ adjective

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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 Parents and guardians can bring their children age 12 and older to clinics hosted in each quadrant of the county. Christina Hall, Detroit Free Press, 20 May 2021 Organizations in this quadrant are people-oriented and place high value on collaboration. Kevin Kruse, Forbes, 1 June 2021 Oceanside’s recall is a grassroots effort on a shoestring budget initiated by long-time residents of District 1, the oldest and most politically active quadrant of the city. Phil Diehl, San Diego Union-Tribune, 30 May 2021 The entire facility will be located in the northeast quadrant of the USD campus. Jay Posner, San Diego Union-Tribune, 17 May 2021 The city of Parma has requested funding for sewer improvements at Valley Villas Drive, York and State Roads in the southwest quadrant of the city, close to the borders of North Royalton to the south and Middleburg Heights to the west. Sabrina Eaton, cleveland, 6 May 2021 Of those seven, the new full interchange proposed for I-71 at Ohio Route 57 in southern Medina County would create the most traffic over the largest area, spreading over nearly the entire southeast quadrant of the county. cleveland, 23 Apr. 2021 Then place four different fillings onto the tortilla, one in each quadrant. Casey Barber, CNN, 14 Apr. 2021 Schumacher represents council District 1, which covers the city’s northwest quadrant including the downtown Village and Barrio neighborhoods. Phil Diehl, San Diego Union-Tribune, 9 Apr. 2021

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

18 Jun 2021

Cite this Entry

“Quadrant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadrant. Accessed 22 Jun. 2021.

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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

More from Merriam-Webster on quadrant

Nglish: Translation of quadrant for Spanish Speakers

Britannica.com: Encyclopedia article about quadrant


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