The word radius (Latin for "wheel spoke"; plural radii, pronounced ray-dee-eye) has several meanings in English: Jump to: navigation, search Latin is an Indo-European language originally spoken in the region around Rome called Latium. ... A spoke is one of some number of rods radiating from the center of a wheel (the hub where the axle connects), connecting the hub with the round traction surface. ... The English language is a West Germanic language that originates in England. ...

• In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i.e., the circular boundary) and the other at the center of the circle. By extension, the radius of a circle or sphere is the length of any such segment.

• More generally — in geometry, engineering, graph theory, and many other contexts — the radius of something (e.g. a cylinder, a graph, or a mechanical part) is the distance from its center or axis to its outermost points. See also diameter.

• In anatomy, the radius is one of the two bones of the forearm

• RADIUS is a remote access and dial-in protocol.

• In FidoNet, the Radius Fidonet mailer is an Argus successor.

• Radius also denotes a character from the SquareSoft RPG Chrono Cross, who, in the Home World, is the village elder of Arni Village.

Jump to: navigation, search Geometry (Greek γεωμετρία; geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. ... Jump to: navigation, search In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i. ... Jump to: navigation, search In Euclidean geometry, a circle is the set of all points at a fixed distance, called the radius, from a fixed point, called the centre (center). ... A sphere is a perfectly symmetrical geometrical object. ... Jump to: navigation, search In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i. ... In general English usage, length (symbols: l, L) is but one particular instance of distance – an objects length is how long the object is – but in the physical sciences and engineering, the word length is in some contexts used synonymously with distance. Height is vertical distance; width (or breadth... Jump to: navigation, search Geometry (Greek γεωμετρία; geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. ... ... A diagram of a graph with 6 vertices and 7 edges. ... Jump to: navigation, search In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i. ... The word cylinder has several meanings. ... Jump to: navigation, search The distance between two points is the length of a straight line segment between them. ... Jump to: navigation, search Look up Center on Wiktionary, the free dictionary This is a disambiguation page, a list of pages that otherwise might share the same title. ... The axis of rotation of a rotating body is a line such that the distance between any point on the line and any point of the body remains constant under the rotation. ... For the geometric term, see diameter. ... Anatomical drawing of the human muscles from the Encyclopédie. ... The radius and ulna of the left forearm, posterior surface. ... The forearm is the structure on the upper limb, between the elbow and the wrist. ... Jump to: navigation, search In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i. ... In computing, a protocol is a convention or standard that controls or enables the connection, communication, and data transfer between two computing endpoints. ... Jump to: navigation, search Representation of the traditional ASCII FidoNet dog logo FidoNet is an inter-connecting file and message transport system that was used by bulletin board systems. ... Jump to: navigation, search Radius is a fictional,playable character from the SquareSoft RPG Chrono Cross. ... Jump to: navigation, search Chrono Cross (クロノ・クロス） is a PlayStation RPG created by Square Co. ...

See also

• bend radius
• Radius (computer)