Uranium

Pronunciation: /jərˈeɪniːəm/

Uranium (noun)

  1. A heavy, naturally occurring metal that gives off radiation and can be used to make nuclear energy.
  2. A form of this metal used in reactors to produce heat, which can then make electricity.

Examples

  • Uranium is a radioactive metal found in some rocks.
  • The lab tests show that uranium is a radioactive metal.