Definitions

1. noun

The distance from the center of a circle or sphere to the circumference.

“The radius of the Earth is approximately 6,371 kilometers.”

2. noun

A point or line extending from the center of something.

“The radius of the wheel is an essential component in its design.”

3. noun

The limit of the area or range of something.

“The radius of the city’s influence extends far beyond its borders.”

4. verb

To move or extend in all directions from a central point.

“The tree radiuses out its branches to catch more sunlight.”

5. noun

A person’s range of acquaintances or social circle.

“She has a small radius of friends in the city.”