Definition of ** Quadrant** in English :

Define ** Quadrant** in English

** Quadrant** meaning in English

Meaning of ** Quadrant** in English

Pronunciation of ** Quadrant** in English

** Quadrant** pronunciation in English

Pronounce ** Quadrant** in English

## Quadrant

see synonyms of quadrant#### Noun

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 quadrantCollins English Dictionary. Copyright © HarperCollins Publishers

## Quadrant

see synonyms of quadrantWebster’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.