The term quadrant refers to an arc equal to one quarter of the circumference of a circle. It also refers to an instrument for measuring altitudes consisting commonly of a graduated arc of 90 degrees with an index having a plumb line for fixing the vertical or horizontal direction. The other meaning of quadrant is any of the four areas into which a plane is divided by two orthogonal coordinate axes.
[kwod-ruhnt]
NOUN
1.
a quarter of a circle; an arc of 90°.
2.
the area included between such an arc and two radii drawn one to each extremity.
3.
something shaped like a quarter of a circle, as a part of a machine.
4.
Geometry, Astronomy one of the four parts into which a plane, as the face of a heavenly body, is divided by two perpendicular lines, numbered counterclockwise from upper right: the first quadrant of the moon.
5.
an instrument, usually containing a graduated arc of 90°, used in astronomy, navigation, etc., for measuring altitudes.
Source: Dictionary.com
Q&A Related to "What Does Quadrant Mean"
 A quadrant is easily defined as a quarter of the circumference of a circle. It can also be described by the area enclosed by two perpendicular radii of a circle. http://answers.ask.com/Science/Mathematics/what_ar...
 : Quadrants refers to a a division of the Cartesian, usually, rectangular Cartesian, coordinate system. (They are called Cartesian because the idea was developed by the mathematician http://wiki.answers.com/Q/What+you+is+quadrant
 The upper-right quadrant, also referred to as the Quadrant I, will only contain points that lie within the range of 0 to positive infinity for both the x and y axis. Therefore, any http://www.ehow.com/info_8402973_four-quadrants-gr...
 Quadrants:1:a quarter of the circumference of a circle; 2:any of the four areas into which a http://www.chacha.com/question/what-are-quadrants
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