Definitions

1. noun

Plural of circumradius. The distance from the center of a circle to its circumference or the distance from the center of a sphere to its surface.

“The circumradii of the Earth and the Moon are approximately the same.”

2. noun

A line segment that connects the center of a circle to a point on the circumference.

“The circumradius of the circle is used in geometry to calculate the area and the perimeter.”

3. noun

A line segment that connects the center of a sphere to a point on its surface.

“The circumradius of the sphere is used in physics to calculate its volume and surface area.”