# quadrant

## noun

quad·rant
ˈkwä-drənt

1

a

**:**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

2

a

**:**an arc of 90 degrees that is one quarter of a circle

b

**:**the area bounded by a quadrant and two radii

3

a

**:**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

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Merriam-Webster unabridged
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