in+about+a...+radius

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• Radius of gyration — is the name of several related measures of the size of an object, a surface, or an ensemble of points. It is calculated as the root mean square distance of the objects parts from either its center of gravity or an axis.Applications in structural… …   Wikipedia

• Radius — Ra di*us (r[=a] d[i^]*[u^]s), n.; pl. L. {Radii} (r[=a] d[i^]*[imac]); E. {Radiuses} (r[=a] d[i^]*[u^]s*[e^]z). [L., a staff, rod, spoke of a wheel, radius, ray. See {Ray} a divergent line.] 1. (Geom.) A right line drawn or extending from the… …   The Collaborative International Dictionary of English

• Radius bar — Radius Ra di*us (r[=a] d[i^]*[u^]s), n.; pl. L. {Radii} (r[=a] d[i^]*[imac]); E. {Radiuses} (r[=a] d[i^]*[u^]s*[e^]z). [L., a staff, rod, spoke of a wheel, radius, ray. See {Ray} a divergent line.] 1. (Geom.) A right line drawn or extending from… …   The Collaborative International Dictionary of English

• Radius of curvature — Radius Ra di*us (r[=a] d[i^]*[u^]s), n.; pl. L. {Radii} (r[=a] d[i^]*[imac]); E. {Radiuses} (r[=a] d[i^]*[u^]s*[e^]z). [L., a staff, rod, spoke of a wheel, radius, ray. See {Ray} a divergent line.] 1. (Geom.) A right line drawn or extending from… …   The Collaborative International Dictionary of English

• RADIUS — contextRemote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized access, authorization and accounting management for people or computers to connect and use a network service. When a person or device… …   Wikipedia

• Radius of convergence — In mathematics, the radius of convergence of a power series is a quantity, either a non negative real number or ∞, that represents a domain (within the radius) in which the series will converge. Within the radius of convergence, a power series… …   Wikipedia

• Radius — In anatomy, the radius is the smaller of the two bones on the thumb side of the forearm. (The bigger one is the ulna). The word radius comes unchanged from the Latin meaning a spoke in a wheel which this bone was thought to resemble. The word… …   Medical dictionary

• radius — [[t]re͟ɪdiaɪ[/t]] radii 1) N SING: with supp 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. 2) N COUNT The radius of a circle is the distance from… …   English dictionary

• radius of gyration — the radius of a cylindrical surface coaxial with the axis of rotation of a body such that if the entire mass of the body were concentrated in that surface the moment of inertia and energy of rotation would be unchanged the radius of gyration… …   Useful english dictionary

• Radius of gyration — Gyration Gy*ra tion (j[ i]*r[=a] sh[u^]n), n. 1. The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution. [1913 Webster] The gyrations of an ascending balloon. De Quincey.… …   The Collaborative International Dictionary of English

• radius — n. the outer and shorter bone of the forearm (compare ulna). It partially revolves about the ulna, permitting pronation and supination of the hand. The head of the radius articulates with the humerus. The lower end articulates both with the… …   The new mediacal dictionary