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radioiron

[rey-dee-oh-ahy-ern] /ˌreɪ di oʊˈaɪ ərn/
noun, Chemistry
1.
the radioactive isotope of iron, with atomic weight 59 and a half-life of 46 days: used chiefly as a tracer in biochemistry.
Origin
1955-1960
1955-60; radio- + iron
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for radioiron
  • The exact years of the radioiron portion of the nutrition study are uncertain.

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