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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

RADIUS

Remote Authentication Dial-In User Service
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

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.
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References in periodicals archive ?
Therefore, three follow-up 2 (visual occlusion) x 2 (curve radius) simple MANOVAs were conducted to compare all pairs of curve radii to find out how they differed.
Curve radii will vary from 110 to 150 m on 3570 Level.
Pasminco's MM130 operates at Broken Hill in development headings 4.1 m high by 5.5 m wide, at a grade of 1 in 7 and at curve radii of 20 m measured at the centre line.