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Meaning of radiocarbon

ra•di•o•car•bon

Pronunciation: (rā"dē-ō-kär'bun), [key]
— n. Chem.
  1. Also calleda radioactive isotope of carbon with mass number 14 and a half-life of about 5730 years: widely used in the dating of organic materials.
  2. any radioactive isotope of carbon.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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