[1] : WordNet (r) 2.0

radiologist
     n : a medical specialist who uses radioactive substances and
         x-rays in the treatment of disease syn: radiotherapist
see also:
radiotherapist 

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

32 moby thesaurus words for "radiologist":
   anesthesiologist, atom-tagger, atomic scientist, cardiologist,
   chiropodist, dermatologist, eye doctor,
   eye-ear-nose-throat specialist, geriatrician, gerontologist,
   gynecologist, immunologist, internist, neurologist,
   nuclear physicist, obstetrician, oculist, ophthalmologist,
   orthopedist, otolaryngologist, otologist, pathologist,
   pediatrician, pediatrist, podiatrist, psychiatrist,
   radiation physicist, radiobiologist, radiochemist, serologist,
   skin man, specialist

Radiologist >> R Words
Radiologist, definition of term: Radiologist
radiologist_pag1.html