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 ?
You'll also be able to manage your logins from your central RADIUS server.
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.
The Steel-Belted Radius family of RADIUS servers includes Steel-Belted Radius/Enterprise Edition, Steel-Belted Radius/Service Provider Edition, Steel-Belted Radius/Advanced Wireless Edition, and the Steel-Belted Radius Concurrency Server.
New services like dial-up, roaming, mobile IP, Quality of Service, Fax over IP, and Voice over IP can be quickly rolled out because of the innovative, modular design of the AAA RADIUS Server 4.
The combination of Interlink's world class AAA RADIUS Server with Avail's award winning RA2000 Remote Access Server platform, provides our customers with a complete dial up solution.
Steel-Belted Radius/Service Provider Edition incorporates the most advanced proxy RADIUS features - including choice of user name decorator and proxy packet filtering - which allow service providers to flexibly forward authentication and accounting requests to the appropriate RADIUS server, whatever type of system or service they've set up.
Steel-Belted Radius for 3Com also enables service providers to implement IP billing and e-commerce solutions based upon accounting data provided by the RADIUS server.
developer of scalable Internet infrastructure software, to integrate the award-winning Steel-Belted Radius authentication RADIUS server with the Inktomi Traffic Server network cache platform.
com/reports/c27701) has announced the addition of AAA Radius Server Middleware Market Opportunities, Strategies, and Forecasts, 2005 To 2011 to their offering.