AskDefine | Define quadrant

Dictionary Definition



1 a quarter of the circumference of a circle [syn: right angle]
2 a quarter of the circumference of a circle [syn: quarter-circle]
3 any of the four areas into which a plane is divided by two orthogonal coordinate axes
4 the area enclosed by two perpendicular radii of a circle
5 a measuring instrument for measuring altitude of heavenly bodies

User Contributed Dictionary



From quadrantem (accusative of quadrans).


  1. One of the four sections made by dividing an area with two perpendicular lines.
  2. The four regions of the Cartesian plane bounded by the x-axis and y-axis.
  3. One fourth of a circle or disc; a sector with an angle of 90°.
  4. A measuring device with a graduated arc of 90° used in locating an altitude.


region of the Cartesian plane
fourth of a circle
measuring device

See also



From quadrans.


fr-noun m
  1. quadrant

Extensive Definition

Quadrant may refer to:
quadrant in German: Quadrant (Begriffsklärung)
quadrant in French: Quadrant
quadrant in Hungarian: Kvadráns (egyértelműsítő lap)
quadrant in Dutch: Kwadrant
quadrant in Polish: Kwadrant
quadrant in Russian: Квадрант
quadrant in Slovak: Kvadrant

Synonyms, Antonyms and Related Words

adjunct, astrolabe, azimuth circle, azimuth compass, bevel, bevel protractor, bevel square, clinometer, component, contingent, crescent, cross section, detachment, detail, division, dole, fraction, goniometer, graphometer, half circle, hemicycle, installment, item, pantometer, parcel, part, particular, percentage, portion, protractor, quarter, quota, radiogoniometer, random sample, remainder, sample, sampling, section, sector, segment, semicircle, sextant, share, subdivision, subgroup, subspecies, theodolite, transit, transit circle, transit instrument, transit theodolite
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