Radiocarbon (noun)

A radioactive isotope of carbon, used in dating organic materials, such as wood and bones, that were once living.

Origin:

It is derived from the words "radio" meaning "radiation" and "carbon" the chemical element.

Examples:

1. Radiocarbon dating was used to determine the age of the ancient Egyptian artifacts.
2. The radiocarbon results indicated that the piece of wood was over 2000 years old.
3. Scientists use radiocarbon dating to measure the age of fossils.
4. Radiocarbon dating was used to determine that the painting was created in the 15th century.
5. The radiocarbon analysis showed that the remains were from the early Neolithic period.