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roentgenism

(rĕntgə-nĭz′əm, -jə-, rŭnt-)
n.
  1. The use of x-rays in the diagnosis and treatment of disease.
  2. A damaging effect of x-rays on tissues.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.