单词 | carbon-14 dating |
释义 | carbon-14 dating in British Englishnoun another name for radiocarbon dating radiocarbon dating in British Englishnoun a technique for determining the age of organic materials, such as wood, based on their content of the radioisotope 14C acquired from the atmosphere when they formed part of a living plant. The 14C decays to the nitrogen isotope 14N with a half-life of 5730 years. Measurement of the amount of radioactive carbon remaining in the material thus gives an estimate of its age Also called: carbon-14 dating |
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