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

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.

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 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.

radius definition: length of a line from center to edge. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "radius arm", "radius …

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

radius: A line segment that joins the center of a circle with any point on its circumference.

RADIUS meaning: 1 : a straight line from the center of a circle or sphere to any point on the outer edge; 2 : the length of this line

In classical geometry, a radius (pl.: radii or radiuses) [lower-alpha 1] of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their …