radioiron

 [rey-dee-oh-ahy-ern]  

ra·di·o·i·ron

   [rey-dee-oh-ahy-ern]
noun Chemistry.
the radioactive isotope of iron, with atomic weight 59 and a half-life of 46 days: used chiefly as a tracer in biochemistry.
کانال کهکشان Kahkeshan TV www.kahkeshantv.com/ تلویزیون کهکشان کانالی فرهنگی هنری برای تمامی پارسی زبانان
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Origin:
1955–60; radio- + iron
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Radioiron is always a great word to know.
So is ammonia. Does it mean:
a colorless, pungent, suffocating, highly water-soluble, gaseous compound, NH3, usually produced by the combination of nitrogen and hydrogen gases
a compound in which oxygen is bonded to one or more electropositive atoms
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