carbon
noun uk/ˈkɑː.bən/ us/ˈkɑːr.bən/
(SUBSTANCE)
B2 [ U ] (symbol C)碳
a chemical element that exists in its pure form as diamond or graphite, and is an important part of other substances such as coal and oil, as well as being contained in all plants and animals
- More examples
- They used carbon dating tests to authenticate the claim that the skeleton was 2 million years old.
- New legislation aims to reduce carbon emissions.
- The substance was identified as carbon.
(DOCUMENT)
[ C ]复写本
a carbon copy