u‧ra‧ni‧um /jʊˈreɪniəm/
noun [uncountable][
Date: 1700-1800;
Language: Modern Latin;
Origin: Uranus; because the substance was discovered soon after the planet]
a heavy white metal that is
radioactive and is used to produce
nuclear power and nuclear weapons. It is a chemical
element: symbol U
[TahlilGaran] Dictionary of Contemporary English ▲