quadrant
1. [ noun ] the area enclosed by two perpendicular radii of a circle
Related terms: area
2. [ noun ] any of the four areas into which a plane is divided by two orthogonal coordinate axes
Related terms: area
3. [ noun ] a quarter of the circumference of a circle
Synonyms: quarter-circle
Related terms: line
4. [ noun ] a quarter of the circumference of a circle
Synonyms: right_angle
Related terms: line angular_unit straight_angle degree oxtant grad
5. [ noun ] a measuring instrument for measuring altitude of heavenly bodies
Related terms: measuring_instrument
Similar spelling:   quadrangle
  quatrain
  Quadroon