radius


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radius

 [ra´de-us] (L.)
1. a line radiating from a center, or a circular limit defined by a fixed distance from an established point or center.
2. in anatomy, the bone on the outer or thumb side of the forearm.
grid radius grid focus.

ra·di·us

, gen. and pl.

ra·di·i

(rā'dē-ŭs, rā'dē-ī),
1. The lateral and shorter of the two bones of the forearm.
2. A straight line passing from the center to the periphery of a circle.
Synonym(s): radio- (3)
[L. spoke of a wheel, rod, ray]

radius

/ra·di·us/ (ra´de-us) pl. ra´dii   [L.]
1. a line from the center of a circle to a point on its circumference.
2. the bone on the outer or thumb side of the forearm, articulating proximally with the humerus and ulna and distally with the ulna and carpus.

radius fix´us  a straight line from the hormion to the inion.

radius

[rā′dē·əs] pl. radii
Etymology: L, ray
one of the outer, shorter bones of the forearm lying parallel to the ulna and partially revolving around it. Its proximal end is small and forms a part of the elbow joint. The distal end is large and forms a part of the wrist joint. The radius receives the insertions of various muscles and articulates with the humerus, ulna, scaphoid, lunate, and triangular bones.
enlarge picture
Radius and ulna

RADIUS

Obstetrics A study–Routine Antenatal Diagnostic Imaging with Ultrasound–involving 15,000 ♀ that evaluated fetal ultrasonography Conclusion No benefit

ra·di·us

, pl. radii (rā'dē-ŭs, -ī)
1. [TA] The lateral and shorter of the two bones of the forearm.
2. A straight line passing from the center to the periphery of a circle.
[L. spoke of a wheel, rod, ray]

radius

One of the two forearm bones, the other being the ULNA. The radius is on the thumb side and lies parallel to the ulna when the palm is facing forward. When the hand is rotated so that the thumb turns inward, the upper end of the radius rotates on a boss on the lower end of the upper arm bone (HUMERUS) but the lower end crosses over the ulna.

radius

the anterior bone in the lower part of the forelimb of vertebrates. see PENTADACTYL LIMB.
Figure 1: The nervous system.

radius

the smaller of the two forearm bones. Articulates at the elbow with the humerus and at the wrist with the carpal bones. adj radial in descriptions of forearm structures, on or towards the side of the radius, i.e. the thumb side. Figure 1.

ra·di·us

, pl. radii (rā'dē-ŭs, -ī)
1. [TA] Lateral and shorter of two bones of forearm.
2. Straight line passing from center to periphery of a circle.
[L. spoke of a wheel, rod, ray]

radius

pl. radii [L.]
1. a line radiating from a center, or a circular limit defined by a fixed distance from an established point or center.
2. one of the two long bones of the forearm that extends from the lateral side of the elbow to the medial side of the wrist or carpus. See also Table 10.

radius curvus syndrome
see curvus.
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Steel-Belted Radius for 3Com offers significant transactional and database access advantages for service provider and enterprise customers.
this week announced a new release of Steel-Belted Radius, their award-winning remote Authentication Dial-In User Service (RADIUS) server, making it the only RADIUS server available that supports tunneling.
Renaissance Mark had worked with Radius Solutions before and was impressed with Radius' level of professionalism during a period in which they were implementing other software solutions.
While Novell's announcement certainly helps to validate RADIUS as a standard, Funk Software has already delivered a NetWare-based RADIUS server -- Steel-Belted Radius -- that offers significantly more functionality than Novell's proposed RADIUS support," said Cimarron Boozer, vice president of product marketing at Funk Software.