quadrant

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a quarter of the circumference of a circle
  2. noun any of the four areas into which a plane is divided by two orthogonal coordinate axes
  3. noun the area enclosed by two perpendicular radii of a circle

Etymology

From Middle English quadrant, from Old French cadran, quadrant and its etymon Latin quadrāns, -antis (“fourth part of something, quarter”). Doublet of quadrans.

In classic literature

Synonyms

quarter-circle

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