Uranium (noun)

1. A heavy, metallic element that is radioactive and is found in small amounts in most rocks and soils and in larger amounts in some minerals.
2. A radioactive metallic element that is used as a fuel in nuclear reactors.

Origin:

From the french word "uranium" which was derived from the planet uranus, which was discovered in 1781 by william herschel, who named it after the greek god of the sky uranus.

Examples:

1. Uranium is used as a fuel in nuclear power plants.
2. The uranium ore is mined and then processed to extract the uranium.
3. Uranium is a dense, heavy metal that is weakly radioactive.
4. Uranium is a naturally-occurring element that has been known since ancient times.
5. The properties of uranium make it a useful material for nuclear power and weapons.