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7 dictionary results for: Radiology
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
ra·di·ol·o·gy       [rey-dee-ol-uh-jee] Pronunciation Key
–noun
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.
[Origin: 1895–1900; radio- + -logy]

—Related forms
ra·di·ol·o·gist, noun
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
ra·di·ol·o·gy       (rā'dē-ŏl'ə-jē)  Pronunciation Key 
n.  
  1. The branch of medicine that deals with the use of radioactive substances in diagnosis and treatment of disease.
  2. The use of ionizing radiation for medical diagnosis, especially the use of x-rays in medical radiography or fluoroscopy.
  3. The use of radiation for the scientific examination of material structures; radioscopy.

ra'di·o·log'i·cal (-ə-lŏj'ĭ-kəl), ra'di·o·log'ic (-lŏj'ĭk) adj., ra'di·o·log'i·cal·ly adv., ra'di·ol'o·gist n.
(Download Now or Buy the Book)
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Online Etymology Dictionary - Cite This Source - Share This
radiology 
"medical use of X-rays," 1900, from radio- (see radio) + Gk.-based scientific suffix -logy "study of."

Online Etymology Dictionary, © 2001 Douglas Harper
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WordNet - Cite This Source - Share This
radiology

noun
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] 

WordNet® 3.0, © 2006 by Princeton University.
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The American Heritage Science Dictionary - Cite This Source - Share This
radiology       (rā'dē-ŏl'ə-jē)  Pronunciation Key 
The branch of medicine that deals with diagnostic images of anatomic structures through the use of electromagnetic radiation or sound waves and that treats disease through the use of radioactive compounds. Radiologic imaging techniques include x-rays, CAT scans, PET scans, MRIs, and ultrasonograms.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
radiology [(ray-dee-ol-uh-jee)]

The branch of medicine devoted to the study of images obtained by x-ray, ultrasound, CAT scans, or magnetic resonance imaging, and to the treatment of cancer by radiation therapy.


The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

radiology ra·di·ol·o·gy (rā'dē-ŏl'ə-jē)
n.

  1. The branch of medicine that deals with the use of radioactive substances in diagnosis and treatment of disease.
  2. The use of ionizing radiation for medical diagnosis, especially the use of x-rays in medical radiography or fluoroscopy.
  3. The use of radiation for the scientific examination of material structures; fluoroscopy.
ra'di·o·log'i·cal (-ə-lŏj'ĭ-kəl) or ra'di·o·log'ic (-lŏj'ĭk) adj.
ra'di·ol'o·gist n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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