What is the quarter of a circle, or of the circumference of a circle, an arc of 90º, or one subtending a right angle at the center called?
quadrant — (Geom.) The quarter of a circle, or of the circumference of a circle, an arc of 90º, or one subtending a right angle at the center. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00