carbon dating
英 [ˌkɑːbən ˈdeɪtɪŋ]
美 [ˌkɑːrbən ˈdeɪtɪŋ]
n. 碳定年法(根据测定古物不同形态的碳含量以计算年代)
牛津词典
noun
- 碳定年法（根据测定古物不同形态的碳含量以计算年代）
a method of calculating the age of very old objects by measuring the amounts of different forms of carbon in them
柯林斯词典
- (古物的)碳14年代测定法,碳定年法
Carbon datingis a system of calculating the age of a very old object by measuring the amount of radioactive carbon it contains.
英英释义
noun
- a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14