[1] : WordNet (r) 2.0

radiology
     n 1: the branch of medical science dealing with the medical use
          of x-rays or other penetrating radiation
     2: radiology examination of the inner structure of opaque
        objects using x rays or other penetrating radiation syn:
        radioscopy
see also:
radioscopy 

[2] : Moby Thesaurus II by Grady Ward, 1.0

35 moby thesaurus words for "radiology":
   x-ray photometry, x-ray spectrometry, atom-tagging, atomic science,
   atomics, atomistics, atomology, curiescopy, fluoroscopy,
   mass spectrography, mass spectrometry, molecular physics,
   nuclear chemistry, nuclear physics, orthodiagraphy,
   photofluorography, quantum mechanics, radiation physics,
   radiobiology, radiochemistry, radiography, radiological physics,
   radiometallography, radiometry, radiopathology, radioscopy,
   radiotechnology, radiotherapy, roentgenography, roentgenology,
   roentgenoscopy, spectroradiometry, thermionics,
   tracer investigation, wave mechanics

Radiology >> R Words
Radiology, definition of term: Radiology
radiology_pag1.html