radius

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radius,

in anatomy: see armarm,
upper limb in humans. Three long bones form the framework of the arm: the humerus of the upper arm, and the radius (outer bone) and ulna (inner bone) of the forearm.
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radius

[′rād·ē·əs]
(anatomy)
The outer of the two bones of the human forearm or of the corresponding part in vertebrates other than fish.
(mathematics)
A line segment joining the center and a point of a circle or sphere.
The length of such a line segment.

radius

1. a straight line joining the centre of a circle or sphere to any point on the circumference or surface
2. the length of this line, usually denoted by the symbol r
3. the distance from the centre of a regular polygon to a vertex (long radius) or the perpendicular distance to a side (short radius)
4. Anatomy the outer and slightly shorter of the two bones of the human forearm, extending from the elbow to the wrist
5. a corresponding bone in other vertebrates
6. any of the veins of an insect's wing
7. a group of ray florets, occurring in such plants as the daisy
8. the lateral displacement of a cam or eccentric wheel

RADIUS

Remote Authentication Dial-In User Service

RADIUS

(Remote Authentication Dial-In User Service) An authentication, authorization and accounting (AAA) protocol developed by Livingston Enterprises (later acquired by Lucent). RADIUS uses a challenge/response method for authentication and has been widely used prior to Diameter. See Diameter, network access server and challenge/response.
References in periodicals archive ?
This enables him to issue server certificates to any of his Odyssey or Steel-Belted Radius servers.
It can authenticate WLAN users against a Windows authentication database, or forward authentication requests to Steel-Belted Radius or other compatible RADIUS server for authentication against non-Windows authentication databases such as those based on LDAP.
1 RADIUS server for UNIX/Solaris is scheduled for availability in June 1998.
A RADIUS server that returns the MPPE-key (Funk Software's SBR is an example) is needed if RADIUS-based authentication and encryption are needed for PPTP tunnels (they usually are).
These capabilities, as well as SNMP monitoring and the ability to authenticate users and fetch address delegation data from a Radius server can be deployed directly by ISP's, Carriers, Government organizations and Enterprises using the Migration Broker within their network.
com/reports/c27701) has announced the addition of AAA Radius Server Middleware Market Opportunities, Strategies, and Forecasts, 2005 To 2011 to their offering.
11b/g Wireless 4-port Router, a highly secure, wireless LAN solution with built-in PEAP RADIUS server this week at the WiFi/ VoWiFi Planet Spring trade show.
0, new versions of their RADIUS servers that add WLAN security, management, and integration features to meet enterprise-level security and management requirements, and form a complete suite of WLAN security products for organizations of all sizes.
Connectivity service networks, as part of carrier back offices, will require stateful firewall software or robust firewall appliances, as well as additional RADIUS servers to handle the extra load imposed by roaming clients on WiMAX authentication.
Proxy RADIUS--Steel-Belted Radius/GEE offers flexibility in forwarding RADIUS requests to other RADIUS servers, including the ability to handle usernames of any format, proxy filtering that lets users selectively modify attributes as proxy packets flow to and from the server, and attribute translation capabilities to facilitate the handling of RADIUS requests from a variety of NAS clients.