Slideshows Images Quizzes

Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. See additional information.

Definition of Radial

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Radial: A word with diverse meanings in medicine and the biomedical sciences:

  1. Pertaining to the radius, the smaller bone in the forearm. The radial artery is so named because of its proximity to the radius.
  2. Pertaining to the radius of a circle.
  3. Spreading from a central point. A radial keratotomy is an eye operation in which incisions are made in the cornea that resemble the spokes in a wheel.

The word "radial" comes from the Latin "radius" meaning a spoke in a wheel which this bone was thought to resemble. The word "radiation" is derived from the same Latin word -- "radius."

Reviewed on 12/11/2018

Health Solutions From Our Sponsors