Something that is radioactive contains a substance that produces energy in the form of powerful and harmful rays.
例句
The government has been storing radioactive waste at Fernald for 50 years.政府在弗纳德存放放射性废料已达50年之久。
英汉词典释义
adj.
放射性的
People should keep away from the radioactive waste.人们应远离放射性废物。The radioactive material is stored in a special radiation-proof container.放射性材料储存在防辐射的特殊容器里。Tritium is one of the mildest radioactive isotopes.氚是辐射最和缓的放射性同位素之一。