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Definition of Quadrant in English :

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Quadrant meaning in English

Meaning of Quadrant in English

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Quadrant

see synonyms of quadrant

Noun

1. quadrant, quarter-circle

a quarter of the circumference of a circle

2. quadrant

any of the four areas into which a plane is divided by two orthogonal coordinate axes

3. quadrant

the area enclosed by two perpendicular radii of a circle

4. quadrant

a measuring instrument for measuring altitude of heavenly bodies

WordNet Lexical Database for English. Princeton University. 2010.

Quadrant

see synonyms of quadrant
noun
1. geometry
a. 
a quarter of the circumference of a circle
b. 
the area enclosed by two perpendicular radii of a circle and its circumference
c. 
any of the four sections into which a plane is divided by two coordinate axes
2. 
a piece of a mechanism in the form of a quarter circle, esp one used as a cam or a gear sector
3. 
an instrument formerly used in astronomy and navigation for measuring the altitudes of stars, consisting of a graduated arc of 90° and a sighting mechanism attached to a movable arm

Collins English Dictionary. Copyright © HarperCollins Publishers

Quadrant

see synonyms of quadrant
noun
1. 
a fourth part of the circumference of a circle; an arc of 90°
2. 
a quarter section of a circle
3. 
any piece or part shaped like a quarter section of a circle
4. 
an instrument similar to the sextant in design and function, and superseded by it
5.  Geometry
any of the four parts formed by rectangular coordinate axes on a plane surface

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Quadrant

see synonyms of quadrant
n.
1. Mathematics
a. A circular arc of 90°; one fourth of the circumference of a circle.
b. The plane area bounded by such an arc and two perpendicular radii.
c. Any of the four areas into which a plane is divided by the reference axes in a Cartesian coordinate system, designated first, second, third, and fourth, counting counterclockwise from the area in which both coordinates are positive.
2. A machine part or other mechanical device that is shaped like a quarter circle.
3. An early instrument for measuring altitude of celestial bodies, consisting of a 90° graduated arc with a movable radius for measuring angles.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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