Meaning & Definition of Radius in English
English⟶
Radius
/rediəs/
noun
1. The length of a line segment between the center and circumference of a circle or sphere
synonym:
- radius,
- r
2. A straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
synonym:
- radius
3. A circular region whose area is indicated by the length of its radius
- "They located it within a radius of 2 miles"
synonym:
- radius
4. The outer and slightly shorter of the two bones of the human forearm
synonym:
- radius
5. Support consisting of a radial member of a wheel joining the hub to the rim
synonym:
- spoke,
- wheel spoke,
- radius
Examples of using
The radius of the Earth is 100 km.
The radius of the Earth is 6400 km.