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ra•di•o•i•so•tope



Pronunciation: (rā"dē-ō-ī'su-tōp"), [key]
n.
a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

radioironradio knife
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