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  1. carbon dating

    • IPA[ˈkärbən ˌdādiNG]

    美式

    • n.
      the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains. The ratio between them changes as radioactive carbon-14 decays and is not replaced by exchange with the atmosphere.
    • noun: carbon dating

    • 相關詞
    • v.
      determine the age or date of (organic matter) from the relative proportions of the carbon ... it proved impossible to carbon-date the bone fragment accurately a rock painting from Catal Hyuk in Turkey has been carbon-dated to 6200
    • n.
      the age or date of organic matter as determined by the relative proportions of the carbon ... the carbon dates were all in the last 5,000 to 10,000 years

    Oxford American Dictionary

    • v.
      determine the age or date of (organic matter) from the relative proportions of the carbon ... it proved impossible to carbon-date the bone fragment accurately a rock painting from Catal Hyuk in Turkey has been carbon-dated to 6200
    • n.
      the age or date of organic matter as determined by the relative proportions of the carbon ... the carbon dates were all in the last 5,000 to 10,000 years

    Oxford Dictionary

    • 更多解釋
    • IPA[ˈkɑːbən ˌdeɪtɪŋ]

    英式

    • n.
      the determination of the age or date of organic matter from the relative proportions of the ...

    Oxford Dictionary