The meaning of RADIUS is a line segment extending from the center of a circle or sphere to the circumference or bounding surface. How to use radius in a sentence.

RADIUS meaning: 1. (the length of) a straight line joining the centre of a circle to its edge or the centre of a…. Learn more.

Radius is defined as a line segment that connects the center of a circle or a sphere to its circumference or boundary. It is an important part of circles and spheres and is generally …

Definition of radius noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The radius around a particular point is the distance from it in any direction. Nigel has searched for work in a ten-mile radius around his home.

ra•di•us (ˈreɪ di əs) n., pl. -di•i (-diˌaɪ) -di•us•es. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. 2. …

The radius (plural radii) of a circle is any line segment that has one endpoint on the center of the circle and the other endpoint on the circle's circumference.

Illustrated definition of Radius: The distance from the center to the circumference of a circle It is half of the circle's...

RADIUS definition: a straight line extending from the center of a circle or sphere to the circumference or surface. See examples of radius used in a sentence.

The plural form is radii (pronounced "ray-dee-eye"). In the figure above, drag the orange dot around and see that the radius is always constant at any point on the circle. Sometimes the …