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radioiodine

[rey-dee-oh-ahy-uh-dahyn, -din, -deen] /ˌreɪ di oʊˈaɪ əˌdaɪn, -dɪn, -ˌdin/
noun, Chemistry.
1.
any of nine radioisotopes of iodine, especially iodine 131 and iodine 125, used as radioactive tracers in research and clinical diagnosis and treatment.
Origin of radioiodine
1935-1940
First recorded in 1935-40; radio- + iodine
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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radioiodine in Medicine

radioiodine ra·di·o·i·o·dine (rā'dē-ō-ī'ə-dīn')
n.
A radioactive isotope of iodine widely used as a tracer.

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