noun
uranium (U)
The chemical element uranium. Often referred to by the shorter form ウラン in modern contexts.
See also: ウラン
ウラニウムは原子力発電に使われる。
Uranium is used in nuclear power generation.
ウラン is a more common, shorter form of the same word. ウラニウム is the full form, often used in formal or scientific contexts.
From English 'uranium', via German 'Uranium' or directly borrowed.