radius

radius definition - medical

ra·di·us (rāˈdē-əs)

noun pl. ra·di·us·es or ra·di·i (-dē-īˌ)
  1. A line segment that joins the center of a circle with any point on its circumference.
  2. A long, prismatic, slightly curved bone, the shorter and thicker of the two forearm bones, located laterally to the ulna.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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