carbon 14

carbon 14
carbon 14 -(')fōr(t)-'tēn, -(')fȯr(t)- n a heavy radioactive isotope of carbon of mass number 14 used esp. in tracer studies and in dating archaeological and geological materials

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a radioactive isotope of carbon, atomic mass 14, having a half-life of 5730 years; it decays by beta emission, with energy of 0.156 MeV, and is used as a tracer in cancer and metabolic research.

Medical dictionary. 2011.

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