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

Other Words from quadrant

quadrantal \ kwä-​ˈdran-​tᵊl How to pronounce quadrant (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 The appendix is located in the right lower quadrant of the abdomen. Bebe Hodges, The Enquirer, 27 July 2022 The Albion-Webster project is slated for the northeast quadrant of Strongsville. Bob Sandrick, cleveland, 5 July 2022 His second-pitch slider traveled to the lower-third quadrant of the strike zone, then traveled over the left-field wall. Evan Petzold, Detroit Free Press, 24 Apr. 2022 The case against a No. 1 seed: Four of Kentucky’s final five games are in Quadrant 1, but the current 5-5 record in the top quadrant is underwhelming compared to the other contenders. Jon Hale, The Courier-Journal, 17 Feb. 2022 Wharf Street is in the midst of a relatively new restaurant, residential and nightlife area along the Washington Channel in the city’s Southwest quadrant. Martin Weil, Washington Post, 17 July 2022 Salt Lake Garfield and Western Railway, a short-line rail company recently acquired by Patriot Rail, already provides transloading services in Salt Lake City’s northwest quadrant. Leia Larsen, The Salt Lake Tribune, 14 June 2022 Each quadrant is different and each produces specific threats. David Heckard, Orlando Sentinel, 31 May 2022 But in between 12th and 13th St., something different has always occupied the building at 1201 K in the Northwest quadrant of the city. Noah Lederman, SPIN, 27 June 2022 See More

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.

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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Dictionary Entries Near quadrant



quadrantal correctors

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Last Updated

5 Aug 2022

Cite this Entry

“Quadrant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadrant. Accessed 11 Aug. 2022.

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More Definitions for quadrant


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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