← Back to browseplutoniumnoun#16,047Translationsプルトニウムプルトニウムプルトニウム爆弾プルトニウムばくだんEnglish definitiona solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutronsExamplesPlutonium has a metallic taste.Similar wordsplutonium-239plutonicplutonplutonianplutonspluto← swallowingdoomsday →