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

The band of flag-waving U.S. supporters known as the American Outlaws had marched and sung their way through the streets of Paris en route to the stadium in the leafy southwest residential quadrant of the city. chicagotribune.com, "U.S. still reigns over women’s soccer, but challengers to the throne are gaining strength," 28 June 2019 Out-of-state investors paid $3,889,760 for a tract of timberland about 1,945 acres in size at the southeast quadrant of Ala. 59 and Interstate 65 in Bay Minette, according to Brandon Broadus and Pete Riehm of NAI Mobile, who handled the transaction. Kathy Jumper, al.com, "Axe throwing coming to Mobile," 24 June 2019 These count most, in a system with four quadrants to classify victories and losses, in determining seeds in March. Fletcher Page, The Courier-Journal, "John Calipari pulls another string in advance of UK basketball's matchup against Tennessee," 5 Feb. 2018 There are few homeless shelter beds available in that quadrant of the city, and a high need, Jolin said. oregonlive.com, "Salvation Army homeless shelter closes in restructuring of Portland shelter system," 12 June 2019 Her symptoms continued to escalate, and newer symptoms – such as difficulty breathing and upper right quadrant pain – were adding to her anxiety. Bob Miller, al.com, "After childbirth nearly claimed her life, this Alabama mom wants to see more postpartum care," 9 June 2019 Opponents say the plan will not relieve traffic in the city, just move it to a new quadrant of the city. Marcy Oster, sun-sentinel.com, "Knesset committee approves Jerusalem cable car plan," 4 June 2019 But Ovechkin’s pucks often trick netminders into covering the wrong quadrant, leaving a parade of sagged shoulders and awestruck admirers in their wake. Alex Prewitt, SI.com, "'It Just Moves Like Crazy': The Deception and Motion of Alex Ovechkin's Shot," 13 Mar. 2018 The first is squeezing out a small amount for each quadrant of your face instead of one pea-size drop for your whole face. Devon Abelman, Allure, "This Powerful Vitamin C Treatment Helped Me Get the Glass Skin of My Dreams," 19 Mar. 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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Statistics for quadrant

Last Updated

4 Jul 2019

Look-up Popularity

Time Traveler for quadrant

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

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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

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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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