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radioisotope

[rey-dee-oh-ahy-suh-tohp] /ˌreɪ di oʊˈaɪ səˌtoʊp/
noun
1.
a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
Origin
1940-1945
1940-45; radio- + isotope
Related forms
radioisotopic
[rey-dee-oh-ahy-suh-top-ik] /ˌreɪ di oʊˌaɪ səˈtɒp ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for radio-isotope

radioisotope

/ˌreɪdɪəʊˈaɪsətəʊp/
noun
1.
an isotope that is radioactive
Derived Forms
radioisotopic (ˌreɪdɪəʊˌaɪsəˈtɒpɪk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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radio-isotope in Medicine

radioisotope ra·di·o·i·so·tope (rā'dē-ō-ī'sə-tōp')
n.
A naturally or artificially produced radioactive isotope.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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radio-isotope in Science
radioisotope
  (rā'dē-ō-ī'sə-tōp')   
A radioactive isotope of a chemical element. Carbon 14 and radon 222 are examples of naturally occurring radioactive isotopes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Difficulty index for radioisotope

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Word Value for radio

6
6
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