[
UK
/ɹˈeɪdɪəs/
]
[ US /ˈɹeɪdiəs/ ]
[ US /ˈɹeɪdiəs/ ]
NOUN
 the length of a line segment between the center and circumference of a circle or sphere
 the outer and slightly shorter of the two bones of the human forearm

a circular region whose area is indicated by the length of its radius
they located it within a radius of 2 miles  support consisting of a radial member of a wheel joining the hub to the rim
 a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
How To Use radius In A Sentence
 Recall that given a circle of radius r, the circumference is 2pr.
 Comparisons between ions are then expressed as a radius ratio, the ratio of the cation radius to the anion radius.
 In the third chapter, using the secondorder momentum of beam radius, the Rayleigh range and beam propagation factor of three different polarized beam arrays are derived.
 The tool has a radiused ridge for cutting and edge sealing with the shape of the ridge similar to the shape desired for the edge seal.
 We have made certain that the reason of the splined spindle rapture is fatigue failure, its crack initiation lies in the minimal knuckle curvature radius surface region of the spline dedendum bottom.
 The menu changes daily and at least 80 per cent of the ingredients are sourced from just a 20 mile radius. The Sun
 The larger the radius, the larger the circle, and the flatter the fretboard will be.
 Results and Conclusions:Our simulations show that in order to improve the focal shape, the outer diameter of the annulus must be as large but the radius of acoustic lens must be as small as possible.
 Immolation Arrow  Increased radius of Explosion effect by 33 % and Immolation effect by %.
 The shock of the explosion was felt over a radius of forty miles.