uranium dioxide
Technical term for the chemical compound UO₂, used as nuclear fuel.
二酸化ウランは原子炉の燃料として使われる。
Uranium dioxide is used as fuel in nuclear reactors.
Refers to the element uranium in general, while 二酸化ウラン specifically means uranium dioxide.
A broader term for uranium oxides; 二酸化ウラン is the dioxide form.
Compound of 二酸化 (dioxide) and ウラン (uranium), a straightforward calque from English 'uranium dioxide'.