Noun(1) the length of a line segment between the center and circumference of a circle or sphere(2) a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere(3) a circular region whose area is indicated by the length of its radius(4) the outer and slightly shorter of the two bones of the human forearm(5) support consisting of a radial member of a wheel joining the hub to the rim
(1) As is usual in chelonioids, the radius is notably longer than the ulna.(2) As skaters pull their arms in, their radius decreases and they spin faster.(3) Tests results Tuesday showed that all 20 farms within a two mile radius of the original infected farm were negative for avian influenza.(4) In the introduction he pointed out that a plane was a special case of a spherical surface, that is a sphere with infinite radius .(5) Abduction is movement of the hand away from the body as the proximal carpal bones move medially on the radius .(6) Once Keaton laughed so hard he scared all the birds within a ten-foot radius out of their perches.(7) It seems sensible to find somewhere with no population centres within a two-mile radius - like offshore.(8) Because of the very mountainous terrain and the need for very shallow radius curves, most of the route will be in tunnels, with consequent heavy civil engineering costs.(9) A circle and square have an equal area only if the ratio between a side of the square and a radius of the circle equals the square root of pi.(10) Bone mineral density was measured at the lumbar spine, radius , hip and femoral neck.(11) It should be known in this connection that according to the relevant law, no structure of any kind can be built within a radius of 100 metres of any registered national monument.(12) Thus, the area of a circle is equal to half of the product of the radius and the circumference.(13) B & Bs within a three-mile radius of the town were full.(14) The IT professionals usually look out for areas surrounding a radius of 9 km from City Railway Station.(15) David Gregory used p/r for the ratio of the circumference of a circle to its radius .(16) The inverse of the radius of the circle equals the curvature in radians/m.