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quadrant

quad·rant [ ˈkwä-drənt]

quadrant

noun

[ˈkwä-drənt]

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

Other Words from quadrant

quadrantal \ kwä-ˈdran-tᵊl \ 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.

Recent Examples on the Web

//The notion that a power quadrant lurked beneath my mom pooch seemed absurd.
— Washington Post, "How a 40-year-old skier tamed her terror and learned to take on black diamond runs," 1 Nov. 2019
//They are headed to see the 25 pivoting prisms, known as Prismatica, on the northern quadrants of the square.
— Gus Chan, cleveland, "Downtown Go & Do: Prismatica lights up Public Square with interactive displays," 1 Nov. 2019
//Unlike many pitchers who want to attack a hitter with their best stuff, Roark feels confident in throwing all four of his pitches to any quadrant of the strike zone.
— Rusty Simmons, SFChronicle.com, "For A’s starter Tanner Roark, it’s not quite Catch-22, but it’s getting close," 20 Sep. 2019
//Some of the most beautiful photographs of Indianapolis in the early 1900s show a sweeping building on the northwest quadrant of Monument Circle that gave the city a Victorian flair.
— Dawn Mitchell, Indianapolis Star, "The English Hotel and Opera House was the grand lady of Monument Circle," 14 Aug. 2019
//Seizures were reported in all quadrants of the city, and one was a .45 caliber pistol found July 4 in the 300 block of O Street SW, about two blocks from the scene of Tuesday’s gunfire.
— Martin Weil, Washington Post, "Gunshots fired in Southwest D.C., striking vehicle and AC units," 9 July 2019
//Despite inducing fewer swings and misses than most major league starters, Anderson has maintained his effectiveness by pitching to soft contact and attacking all four quadrants of the strike zone.
— Kerry Crowley, The Mercury News, "Giants check off each box on Bochy’s wish list in final game of first half," 28 June 2019
//With the aid of a changeup and the ability to hit all quadrants of the strike zone, Quintana has allowed more than three runs only once in his last 11 starts and has issued only two walks in his last 16 2/3 innings.
— Mark Gonzales, chicagotribune.com, "Cubs rotation has been a steadying force in climb to 1st place. Here's a look at how all 5 starters have improved.," 10 June 2019
//Left to grieve are relatives and friends in nearly every quadrant of the District.
— Peter Hermann, Washington Post, "In the weeks before he was killed, he wrote a poem. ‘In D.C., it’s nothing but people trying to take your life away’," 23 July 2019

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

Dictionary Entries near quadrant

quadrantal correctors

quadrantal deviation

quadrantal error

More Definitions forquadrant

quadrant

noun

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

quadrant

noun

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

quadrant

noun

quad·rant | \ ˈkwäd-rənt \

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