Pronunciation: (rā"dē-ol'u-jē), [key]
1. the science dealing with x-rays or nuclear radiation, esp. for medical uses.
2. the examination or photographing of organs, bones, etc., with such rays.
3. the interpretation of medical x-ray photographs.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.