radius
/ˈreɪdiəs/
noun
- The distance from the center of a circle or sphere to its outer edge.
- The satellite orbits Earth at a radius of 400 kilometers.
- To find the area of a circle, you need to know its radius.
- The radius of the pizza was about eight inches.
- A specified distance around a particular place or point.
- The school is within a one-mile radius of my house.
- All restaurants within a 10-kilometer radius were fully booked.
- Police searched a two-block radius for the missing dog.
- The bone in the forearm on the same side as the thumb.
- He broke his radius when he fell off his skateboard.
- A fracture of the radius is a common injury in wrist falls.
- The doctor examined the radius and ulna in the X-ray.