Tritium (noun)

A radioactive isotope of hydrogen with three nucleons, which is used in certain types of nuclear weapons and in self-powered lighting systems.

Origin:

Derived from the greek word "tritos" meaning third, tritium is a radioactive isotope of hydrogen with three nucleons.

Examples:

1. Tritium is used in hydrogen bombs.
2. Tritium is used in self-powered lighting systems.
3. Tritium is a radioactive isotope of hydrogen.
4. Tritium is a dangerous material if not handled properly.
5. Tritium is used in some types of watches and instruments.