| quadrant | a measuring instrument for measuring altitude of heavenly bodies |
|---|---|
| quadrant | the area enclosed by two perpendicular radii of a circle |
| quadrant | any of the four areas into which a plane is divided by two orthogonal coordinate axes |
| quadrant | a quarter of the circumference of a circle |
| quadrant | a quarter of the circumference of a circle |
| quadrant | blindness in one fourth of the visual field |