radiuses Definition

radius
noun radii, radiuses

1a. geom.
A straight line running from the centre to any point on the circumference of a circle or the surface of a sphere;
1b. geom.
The length of such a line.
2. A radiating line.
3. Anything placed like a radius, such as the spoke of a wheel.
4. A usually specified distance from a central point, thought of as limiting an area.

Example: all the houses within a radius of 10km
5a. anatomy.
The shorter of the two bones in the human forearm, on the thumb side;
5b. anatomy.
The equivalent bone in other animals. Compare ulna.

Derivative: radial

See separate entry.

Etymology: 16c: Latin, meaning a ‘rod, spoke or ray'.