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radius

radius

8 4.8
The outer, shorter bone in the forearm on the thumb side
  • noun
  • /ˈreɪdiəs/
  • Specialized
translation icon : radio
  • He's got a compound fracture in his right radius.
  • a radius fracture
  • distal radius
  • radius and ulna

Examples

  • On examination, a child with a distal radius fracture usually has pain, swelling, and/or deformity at the wrist.

    Academic text (2006)
  • The doctor explained that the radius was fractured during the fall.

  • Reaching back into the box under the table, he hands me a broken radius arm bone about five inches long.

    Academic text (2008)
  • Okay, looks like a fractured left radius.

  • Right, look, when you're talking to your doctor, just tell him you have a spiral fracture of the left radius.

  • Numerous studies have shown the radius to be the most commonly injured long bone in the pediatric population (Wilkins, 2001).

    Academic text (2006)
  • Fractures of the distal radius are usually classified as either articular or non-articular.

    Academic text (2003)
  • She fractured the radius and ulna on her left forearm, cracked the 10th, 11th and 12th ribs on her left side and banged her head pretty good.

  • The most common fractures in children occur in the upper extremity at the distal radius (wrist), elbow (supracondylar), and clavicle (collarbone) (Landin, 1997).

    Academic text (2006)
  • He showed me the X-ray, which clearly indicated a break in the radius bone.

Compounds

radius vector
  • Specialized
8.7

A straight line from a point to a central point, for example the center of rotation or the origin

radius of curvature
  • Specialized
7.7

The distance from a curve to the center of the circle that best fits the curve at a point

Surface Forms

radius singular
radii plural

Etymology

Radius comes from Latin radius, 'rod' or 'spoke', because the forearm bone looks like a small rod running from the elbow to the wrist on the thumb side. So the bone is called the radius.