plutonium 239   (TTS Sound)

The plutonium_239 has 1 Senses.

• plutonium 239
• a highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel; produced by irradiating uranium 238 with slow electrons
• 核分裂性の高いプルトニウムの同位元素で、核兵器の中に、また原子炉燃料として用いられる