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单词 radiocarbon
释义 radiocarbon
 /ray'dee oh kahr"beuhn/, n. Chem.
  1. Also called carbon 14. a 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.
 [1935-40; RADIO- + CARBON]
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