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单词 radiocarbon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•o•car•bon  (rā′dē ō kärbən),USA pronunciation n. [Chem.]
  1. ChemistryAlso 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. Chemistryany radioactive isotope of carbon.
  • radio- + carbon 1935–40

Collins Concise English Dictionary © HarperCollins Publishers::
radiocarbon /ˌreɪdɪəʊˈkɑːbən/ n
  1. a radioactive isotope of carbon, esp carbon-14
    See carbon
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