quadrant

A noun referring to a quarter of a circle's circumference, one of four sections of a plane divided by perpendicular axes, the area between two perpendicular radii, or an instrument for measuring altitude.

• 🌐اسم يدل على ربع الدائرة، أو إحدى المناطق الأربع التي يقسمها تقاطع محورين متعامدين في المستوى، أو المنطقة المحصورة بين نصفي قطرين متعامدين، أو آلة قديمة لقياس الارتفاعات والزوايا.

1. Quarter of a circle's circumference B2 formal scientific

   One quarter of the circumference of a circle, or an arc of 90 degrees.

   • The arc of the quadrant measured exactly 90 degrees.
   • He calculated the length of the quadrant for the geometry problem.
   • The quadrant of the circle was drawn with a compass.

   🌐ربع الدائرة

   المرادفات: quarter-circle

2. Division of a plane B2 formal scientific

   Any of the four areas into which a plane is divided by two perpendicular coordinate axes.

   • The point (3, -2) lies in the fourth quadrant of the coordinate plane.
   • In mathematics, each quadrant is numbered counterclockwise.
   • The graph showed data points in all four quadrants.

   🌐ربع المستوى

   المرادفات: quartersector

3. Area enclosed by radii B2 formal scientific

   The area enclosed by two perpendicular radii of a circle and the arc between them.

   • The quadrant of the circle had an area of 25 square centimeters.
   • He shaded the quadrant to highlight the section of the pie chart.
   • The design featured a quadrant filled with intricate patterns.

   🌐ربع الدائرة

   المرادفات: quarterquarter-circle

4. Astronomical instrument C1 formal scientific

   A measuring instrument used historically to measure the altitude of celestial bodies above the horizon.

   • The astronomer used a quadrant to measure the star's altitude.
   • Ancient navigators relied on the quadrant for celestial navigation.
   • The museum displayed a brass quadrant from the 18th century.

   🌐رُبْع مُوجَّه فلكي

• quadrants plural form
• quadrants' possessive plural form
• quadrant's possessive singular form