单词 | carbon-date |
释义 | carbon-dateverb [with object] Determine the age or date of (organic matter) from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains: it proved impossible to carbon-date the bone fragment accurately a rock painting from Catal Hyuk in Turkey has been carbon-dated to 6200 BC...
noun (carbon date) The age or date of organic matter as determined by the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains: the carbon dates were all in the last 5,000 to 10,000 years...
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